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Terms of Service
The agreement between you and Stellomail: your account, plans and payment, refunds, what you own, acceptable use and your rights as a consumer.
Who we are
These Terms of Service (the “Terms”) form a binding agreement between you and Stellomail Μονοπρόσωπη Ι.Κ.Ε., a single-member private company incorporated in Greece, registered with the General Commercial Registry (ΓΕΜΗ) under no. 123456701000, with its registered office at Ermou 40, 105 63 Athens, Greece (“Stellomail”, “we”, “us” or “our”). They govern your access to and use of the Stellomail email service, the website at stellomail.com, and our web, iOS, Android and desktop applications (together, the “Service”). These Terms were last updated on 1 September 2026 and are effective from 1 September 2026.
You accept these Terms when you create a Stellomail account, tick the box confirming your acceptance, or otherwise use the Service. If you do not agree to these Terms, you must not use the Service.
You must be at least 15 years old to use the Service, or older if the law of the country where you live sets a higher minimum age for consenting to online services without parental involvement. If you are under the age of majority where you live, you confirm that a parent or legal guardian has reviewed these Terms and agrees to any paid purchase made for your account.
If you use the Service on behalf of a company, organisation or other legal entity, you confirm that you are authorised to accept these Terms on its behalf, and “you” includes that entity. Where these Terms distinguish between consumers and business users, a “consumer” means an individual acting for purposes wholly or mainly outside their trade, business, craft or profession.
The current version of these Terms is always available at stellomail.com and within the account settings of our applications. Our Privacy Policy, available at stellomail.com/privacy, explains how we handle personal data and forms part of these Terms.
The service
Stellomail provides an email service that includes @stellomail.com addresses, a web application, and applications for iOS, Android and desktop operating systems. Depending on your plan, the Service includes: “the oracle”, a set of pre-send checks; “sunrise delivery”, scheduled sending timed to a recipient’s local morning; “amphorae”, saved reply templates; removal of tracking pixels from incoming mail; import of mail and contacts from Gmail, Outlook and iCloud; custom domains; shared inboxes; administration tools and single sign-on (SSO); and sign-in with passkeys. The features included in each plan are described on our pricing page and in the section “Plans and payment” below.
We will use reasonable care and skill to keep the Service available, secure and working as described. However, the Service depends on the internet, on third-party networks and on other mail providers, and we do not guarantee that it will be uninterrupted, error-free or available at all times. We may carry out planned maintenance, which we will try to schedule at times of low use and announce in advance where it is likely to cause noticeable disruption.
We continually improve the Service and may add, change or remove features. We will not remove a core feature of a paid plan during a period you have already paid for without either providing a reasonable equivalent or offering you a pro-rata refund of the fees for the unused part of that period. From time to time we may offer early-access or beta features, which will be clearly labelled; these are provided for evaluation, may change or be withdrawn at any time, and may be less reliable than the rest of the Service.
The Service is available worldwide, except where providing it would breach applicable law, including international sanctions. You are responsible for complying with any local laws that apply to your use of the Service.
Your account
To use the Service you must create an account and choose an @stellomail.com address. You agree to provide accurate and complete registration information, including a working recovery email address, and to keep it up to date. Addresses are allocated on a first-come, first-served basis; we may decline or reclaim an address that impersonates another person or organisation, infringes a trademark, is misleading, or is reserved for operational use.
You are responsible for keeping your sign-in credentials secure, including your password, passkeys, recovery codes and any devices on which you are signed in. We strongly recommend enabling passkeys or two-step verification. We will never ask you for your password by email or telephone.
Each account is for one person. You must not share your account or sign-in credentials with anyone else, or sell, transfer or rent your account or address. Organisations that need several people to work from the same mailbox should use shared inboxes on the Corinthian plan.
You are responsible for all activity that takes place under your account, except to the extent it results from our own failure to protect the Service. You must notify us promptly at support@stellomail.com if you become aware of any unauthorised access to your account or any other security incident affecting it.
If we cannot verify that a request relating to an account comes from its rightful holder, we may refuse to act on it. To protect you, account recovery may require access to your recovery address, recovery codes or registered passkeys, and we may be unable to restore access to an account for which none of these are available.
Teams and domains
On the Corinthian plan, an organisation (the “Customer”) may create and manage accounts for its members through the administration tools. The Customer’s administrators may, depending on the settings they choose, create, suspend and delete member accounts, reset sign-in methods, configure single sign-on, manage shared inboxes and team send checks, and access, retain or export mail and data in member accounts. If your account is provided by a Customer, the Customer’s own policies also apply to you, and you should direct questions about them to your administrator.
The Customer is responsible for its administrators’ actions, for obtaining any consents and providing any notices its members require under applicable law, and for paying the fees for all accounts on its plan. To the extent we process personal data on behalf of a Customer, we do so as its processor under our Data Processing Agreement, which is available on request from legal@stellomail.com and forms part of these Terms for Corinthian customers.
If you connect a custom domain to the Service, you confirm that you own or are authorised to use that domain and to change its DNS records. You are responsible for renewing your domain registration and maintaining the DNS records we require. If your domain lapses, is transferred or is misconfigured, mail to addresses on that domain may be lost or delivered elsewhere, and we are not responsible for that outcome.
Plans and payment
We currently offer three plans. Doric is free forever and includes one address, 10 GB of storage, the oracle, sunrise delivery and three amphorae. Ionic costs $4 per month, or $40 per year billed yearly, and includes 100 GB of storage, unlimited amphorae, a custom domain and custom send checks. Corinthian costs $6 per person per month, or $60 per person per year billed yearly, and includes 1 TB of storage per person, shared amphorae, team send checks, shared inboxes, and administration tools with single sign-on. Prices are stated in US dollars. VAT, sales tax or similar taxes are added where required by law, at the rate that applies to you, and the total amount payable is shown before you confirm any purchase.
Paid plans are billed in advance, monthly or yearly depending on the billing period you choose. Paid plans renew automatically at the end of each billing period for a further period of the same length, and we will charge your payment method at the then-current price, until you cancel. You can cancel at any time in Settings → Plan. Cancellation takes effect at the end of the current billing period, and you keep your paid features until then. Before a yearly plan renews, we will remind you by email.
Upgrades take effect immediately, and you will be charged a prorated amount for the remainder of the current billing period. Downgrades take effect at the end of the current billing period. If your stored mail exceeds the storage allowance of your new plan, nothing is deleted: you can still read, search and export all of your mail, but we may stop accepting new incoming mail until you are back within your allowance or choose a larger plan. Features not included in your new plan, such as custom domains or shared inboxes, stop working when the downgrade takes effect.
Payments are processed by Stripe, our payment processor, using the payment methods shown at checkout. Your card details are sent directly to Stripe; we never see or store your full card number. By providing a payment method, you authorise us, through Stripe, to charge it for all fees due under your plan, including renewals.
We may change our prices by giving you at least 30 days’ notice by email. A price change applies from your next renewal after the notice period ends, never to a period you have already paid for. If you do not wish to pay the new price, you may cancel before the renewal date and you will not be charged. If a payment fails, we will let you know and give you a grace period of 14 days to update your payment method. If payment is still outstanding after that, your account moves to the limits of the Doric plan. We will never delete your mail for non-payment without first giving you at least 60 days’ notice by email.
Refunds and withdrawal
If you cancel a yearly plan within 14 days of its purchase or of its renewal, we will refund the fee for that year in full. Monthly fees are otherwise non-refundable, except where these Terms state otherwise or where applicable law requires a refund. Refunds are made to the original payment method within 14 days of your cancellation or withdrawal.
If you are a consumer in the European Union, you have a statutory right to withdraw from a contract for a paid plan within 14 days of the day the contract is concluded, without giving any reason. The Service starts immediately on purchase: by upgrading and starting to use the paid features straight away, you expressly request that we begin providing them during the withdrawal period and you acknowledge the rules on the right of withdrawal set out in this section. If you withdraw from a yearly plan, you receive a full refund as described above. If you withdraw from a monthly plan, we will refund the fee paid, minus an amount proportionate to the part of the Service provided up to the time you told us of your withdrawal.
To exercise the right of withdrawal, you must inform us of your decision by a clear statement, for example an email to support@stellomail.com or a letter to Stellomail Μονοπρόσωπη Ι.Κ.Ε., Ermou 40, 105 63 Athens, Greece. Cancelling within 14 days in Settings → Plan also counts as exercising the right. You may use the following model withdrawal form, but you are not required to: “To Stellomail Μονοπρόσωπη Ι.Κ.Ε., Ermou 40, 105 63 Athens, Greece, support@stellomail.com: I hereby give notice that I withdraw from my contract for the supply of the following service.” followed by the name of the plan, the date it was ordered, your name and address, the Stellomail address of the account, and the date of your notice. To meet the withdrawal deadline, it is sufficient that you send your communication before the withdrawal period has expired.
Nothing in these Terms affects your statutory rights as a consumer, including your rights under the legal guarantee that digital services supplied to you conform to the contract. If the Service does not conform to what we have promised, you may be entitled to have it brought into conformity, to a proportionate price reduction or to terminate the contract, as provided by applicable law.
Your mail is yours
You retain all rights, title and interest in the messages, attachments, contacts, amphorae, calendars and other content you store in, send through or receive through the Service (“Your Content”). We claim no ownership of Your Content.
You grant us a worldwide, non-exclusive, royalty-free licence to host, store, copy, transmit, process, index and display Your Content solely as necessary to provide, secure and maintain the Service for you, including to deliver and receive your mail, filter spam and malicious software, remove tracking pixels, make your mail searchable, sync it across your devices, back it up, and act on your instructions. This licence ends when Your Content is deleted from our systems in accordance with these Terms, except to the extent necessary to comply with the law.
We do not show advertising in the Service, and we never will. We do not sell your personal data or Your Content, and we do not read or analyse your mail for advertising or marketing purposes. Your Content is never used to train AI models. Our staff do not access the contents of your mailbox except where you ask us to, for example when you request support and give us permission; where strictly necessary to investigate abuse or a security threat to the Service; or where we are required to do so by a valid legal order issued under Greek or European Union law.
You are responsible for Your Content and confirm that you have the rights necessary to store and send it and to grant the licence above. We may remove or block content, or restrict an account, where we reasonably believe that it breaches these Terms or the law, acting proportionately and, where appropriate, after telling you why. You can report content or activity that you believe is illegal, abusive or infringes your rights, including copyright, by writing to abuse@stellomail.com with enough detail for us to identify it. We will review reports diligently and objectively, and let the reporter and, where appropriate, the account holder know the outcome.
Acceptable use
You must use the Service lawfully and in accordance with these Terms. In particular, you must not use the Service to: (a) break any applicable law or regulation, or promote or facilitate illegal activity; (b) send spam, bulk unsolicited messages, or commercial messages without the consent required by law; (c) harass, threaten, stalk, defame or abuse any person, or incite violence or hatred; (d) send or store child sexual abuse material, which we report to the competent authorities; (e) engage in phishing, fraud or scams, or collect other people’s personal data without a lawful basis; (f) impersonate any person or organisation, or misrepresent your affiliation with them; or (g) infringe anyone’s intellectual property, privacy or other rights.
You must not: (a) send, store or distribute viruses, malware or other harmful code; (b) attempt to gain unauthorised access to the Service, to other users’ accounts, or to our systems and networks; (c) probe, scan or test the vulnerability of the Service, or bypass or disable any security, authentication, rate-limiting or sending limit, except for good-faith security research that you report promptly and privately to abuse@stellomail.com without accessing other users’ data; (d) interfere with or disrupt the Service or place an unreasonable load on our infrastructure; (e) scrape, harvest or access the Service by automated means other than through our applications or standard email protocols that we support; or (f) copy, decompile, disassemble or reverse engineer any part of the Service, except to the extent permitted by applicable law.
You must not resell, sublicense, rent or provide the Service to third parties as a service bureau, or otherwise commercially exploit it, without our prior written consent, and you must not use the Service to build or benchmark a competing product.
If we reasonably believe that you have breached this section, we may take action proportionate to the breach, including warning you, limiting sending, removing content, or suspending or closing your account, as described in the section “Suspension and closure”.
Sending limits
To protect the Service and the reputation of our mail servers, the following sending limits apply: Doric accounts may send to up to 300 recipients per day; Ionic accounts to up to 1,000 recipients per day; and Corinthian accounts to up to 2,000 recipients per person per day. Each recipient of a message counts towards the limit, including recipients in the Cc and Bcc fields, and a message sent to a group or list counts once for each resulting recipient.
When you reach your limit, further messages will not be sent until the limit resets, and we will tell you so in the application. We may temporarily reduce the limits for an individual account where we detect patterns consistent with spam, a compromised account or other abuse, and we will restore them once the issue is resolved.
The Service is designed for personal and business correspondence, not for bulk marketing or newsletter distribution. If you have a legitimate need for higher limits, contact support@stellomail.com and we will consider your request.
Our property
The Service, including its software, design, text, graphics, interfaces, the names Stellomail, the oracle, sunrise delivery and amphorae, and our logos, is owned by Stellomail or its licensors and is protected by intellectual property laws. Except for the rights expressly granted in these Terms, we reserve all rights in the Service.
Subject to your compliance with these Terms, we grant you a personal, limited, non-exclusive, non-transferable and revocable licence to access and use the Service, and to install and use our applications on devices you own or control, for as long as you have an account. Applications downloaded from a third-party app store are also subject to that store’s terms, but these Terms govern our relationship with you.
You must not use our names, logos or trademarks without our prior written permission, except to refer to the Service accurately, for example when giving someone your @stellomail.com address.
If you send us feedback or suggestions about the Service, you allow us to use them without restriction or payment to you. We are grateful for them all the same.
Privacy and your data
Our Privacy Policy, available at stellomail.com/privacy, explains in detail what personal data we collect, why we collect it, how long we keep it and how you can exercise your rights, and also describes the limited cookies and similar technologies we use. In summary: we collect only what we need to provide and protect the Service; Your Content and account data are stored in data centres in Athens and Frankfurt, are encrypted at rest and in transit, and stay within the European Union; and we never use your data for advertising or sell it to anyone.
GDPR. Stellomail is the controller of the personal data we process about you as a user of the Service, except where we act as processor for a Corinthian customer. We process personal data on the basis of the performance of our contract with you, our legitimate interests in keeping the Service secure and free of abuse, compliance with our legal obligations and, where we ask for it, your consent, which you may withdraw at any time. You have the right to access, rectify and erase your personal data, to restrict or object to its processing, and to receive it in a portable format; the export tools described in these Terms help you with the last. Where a service provider, such as our payment processor, handles limited personal data outside the European Economic Area, we protect that transfer with an adequacy decision or the European Commission’s standard contractual clauses. You can exercise your rights or contact the team responsible for data protection at privacy@stellomail.com, and you have the right to lodge a complaint with the Hellenic Data Protection Authority or with the supervisory authority where you live or work.
CCPA. If you are a California resident, you have the right under the California Consumer Privacy Act, as amended, to know what personal information we collect, use and disclose, to access it, to have it corrected or deleted, and not to be discriminated against for exercising these rights. We do not sell your personal information and do not share it for cross-context behavioural advertising, so there is nothing to opt out of; we nevertheless honour Global Privacy Control signals. To make a request, write to privacy@stellomail.com. We will verify your request before acting on it, and you may use an authorised agent to make it on your behalf.
The oracle and scheduling
The oracle’s pre-send checks, which look for a missing attachment, an unusual or possibly mistyped recipient, a reply-all to ten or more people, a message arriving during the recipient’s night, and a subject that does not match the body, run locally on your device. The content of your draft is not sent to us for the purpose of these checks. The checks are suggestions only and never prevent you from sending a message. They will not catch every mistake and may occasionally flag something that is not one; you remain responsible for the content, recipients and timing of the messages you send.
Sunrise delivery schedules a message to arrive in the recipient’s local morning. We infer the recipient’s time zone from the headers of messages you have exchanged or from their contact card, and the inference may be wrong or out of date. Scheduled delivery, including sunrise delivery, is provided on a best-effort basis: we will send scheduled messages as close as reasonably possible to the chosen time, but we do not guarantee delivery at an exact time and are not liable for small delays. Once a message leaves our servers, its delivery depends on the recipient’s mail provider, which we do not control.
Tracker-pixel removal is designed to block known tracking techniques in incoming mail but may not detect all of them, and it may occasionally affect how a message is displayed. Import from Gmail, Outlook and iCloud depends on access provided by those services, which may change or be limited by them; we cannot guarantee that every message, folder or setting will be imported exactly as it appeared in the original service.
Liability
To the extent permitted by applicable law, the Service is provided “as is” and “as available”, and we disclaim all warranties and conditions not expressly set out in these Terms, including implied warranties of merchantability, fitness for a particular purpose and non-infringement. This paragraph does not affect any statutory guarantee or right that cannot be excluded by contract, including the legal guarantee of conformity for consumers.
To the extent permitted by applicable law, neither party is liable to the other for any indirect or consequential loss, or for any loss that was not reasonably foreseeable when you accepted these Terms, and, where you use the Service for business purposes, we are not liable for loss of profits, revenue, business, goodwill or anticipated savings.
To the extent permitted by applicable law, our total aggregate liability arising out of or in connection with these Terms or the Service is limited to the greater of (a) the total amounts you paid us for the Service in the 12 months before the event giving rise to the claim, and (b) €100.
Nothing in these Terms excludes or limits our liability for death or personal injury caused by our negligence, for fraud or fraudulent misrepresentation, for gross negligence or wilful misconduct, or for any other liability that cannot be excluded or limited under applicable law, including mandatory consumer protection law of the European Union and its member states.
We are not liable for any failure or delay in performing our obligations caused by events beyond our reasonable control, including natural disasters, fire, flood, pandemics, war, terrorism, civil unrest, government action, labour disputes not involving our own staff, and widespread failures of the internet, power grids or third-party networks. If such an event occurs, we will notify you where possible, take reasonable steps to minimise its effects, and resume performance as soon as reasonably practicable.
Indemnity
If you use the Service for the purposes of a trade, business or profession, you agree to indemnify Stellomail and its directors and employees against all claims, losses, damages and reasonable costs, including reasonable legal fees, brought by a third party to the extent arising from (a) your breach of these Terms, (b) Your Content, or (c) your infringement of any law or of any third party’s rights. This indemnity does not apply to the extent a claim is caused by our own breach of these Terms or our negligence.
We will notify you promptly of any claim covered by this indemnity, give you reasonable cooperation at your expense, and allow you to control its defence and settlement, provided that you may not settle a claim in a way that imposes an obligation or admission on us without our prior written consent. We may participate in the defence with counsel of our own choosing at our own cost.
If you are a consumer, this section does not apply to you, and your liability towards us is governed solely by applicable law.
Suspension and closure
You may close your account at any time in Settings → Account → Close account. You can export your mail at any time, in MBOX or EML format, and your contacts in vCard format, whether or not you intend to leave; we recommend doing so before closing your account. If you close an account on a paid plan, the section “Refunds and withdrawal” determines whether any refund is due.
We may suspend or restrict your account, in whole or in part, where we reasonably believe that you have materially or repeatedly breached these Terms, that your account has been compromised or is being used to send spam or malicious software, that continuing to provide the Service to you would expose us, other users or third parties to legal liability or harm, or where we are required to do so by law. Where reasonable and lawful, we will tell you in advance, explain the reason, and give you an opportunity to remedy the problem or to contest our decision by writing to support@stellomail.com. We may close your account if a serious breach is not remedied, or immediately in cases of severe or repeated abuse. If we close an account on a paid plan other than for your breach, we will refund any fees paid for the unused part of the billing period.
A Doric account that has not been signed into for 12 months may be closed as inactive. Before closing it, we will send at least two warnings by email, 30 days apart, to the account’s address and to its recovery address. Signing in to the account from any of our applications before the closure date keeps it open.
When an account is closed, access to it ends and the Service stops accepting mail for its address. Your mail and other data are deleted from our live systems within 30 days of closure and from our backups within a further 60 days, except where we are legally required to retain specific data for longer. Deleted data cannot be recovered after these periods. If we ever decide to discontinue the Service as a whole, we will give you reasonable advance notice, sufficient to export your data, and refund any fees paid for the period after discontinuation.
The sections of these Terms which by their nature should continue after closure, including those on your content, our property, liability, indemnity and disputes, as well as any accrued rights to payment or refund, survive the closure of your account.
Disputes
If you have a complaint or dispute relating to the Service or these Terms, please contact us first by writing to legal@stellomail.com, describing the issue and the outcome you are seeking. We will acknowledge your message promptly and both parties will try in good faith to resolve the matter informally within 30 days of receipt. This step does not prevent either party from seeking urgent interim relief from a court, and it does not affect any limitation period that applies to your claim.
These Terms, and any dispute or claim arising out of or in connection with them or the Service, including non-contractual disputes, are governed by the laws of Greece. Subject to the following paragraph, the courts of Athens, Greece, have jurisdiction to settle any such dispute. If you use the Service for business purposes, that jurisdiction is exclusive.
If you are a consumer, the choice of Greek law does not deprive you of the protection of the mandatory provisions of the law of the country where you have your habitual residence. You may bring proceedings against us either in the courts of Athens or in the courts of the country where you live, and we may bring proceedings against you only in the courts of the country where you live. You may join or bring collective actions to the extent permitted by applicable law; nothing in these Terms waives that right.
If you are a consumer, you also have the right to submit a complaint to the Greek consumer authorities, namely the General Secretariat for Commerce and Consumer Protection of the Ministry of Development, and to refer the dispute to an alternative dispute resolution body, such as the Hellenic Consumer Ombudsman or the equivalent body in your country of residence. We will engage in good faith with any such procedure.
Changes to these terms
We may amend these Terms from time to time, for example to reflect changes to the Service, to our plans, or to the law. For material changes, we will notify you at least 30 days before they take effect, by email to your account address and by a notice within the Service, explaining what is changing. Minor changes that do not adversely affect you, such as corrections of typographical errors or clarifications, and changes required by law with a shorter deadline, may take effect on publication.
If you do not agree to a change, you may close your account before it takes effect. If you are on a paid plan and a material change adversely affects you, you may terminate your plan within 30 days of the notice, and we will refund any fees paid for the unused part of the billing period. If you continue to use the Service after the change takes effect, the amended Terms will apply to you.
The date at the top of these Terms shows when they were last updated. Previous versions are available on request from legal@stellomail.com.
The fine print
Entire agreement. These Terms, together with the Privacy Policy and, for Corinthian customers, the Data Processing Agreement, constitute the entire agreement between you and us regarding the Service and supersede any prior agreements or understandings on that subject.
Severability and waiver. If any provision of these Terms is held invalid or unenforceable, it will be enforced to the maximum extent permissible and the remaining provisions will remain in full force and effect. A failure or delay by either party in enforcing any right under these Terms is not a waiver of that right.
Assignment. You may not assign or transfer your rights or obligations under these Terms without our prior written consent. We may transfer our rights and obligations to another entity as part of a merger, acquisition, reorganisation or sale of all or substantially all of our business, provided that your rights under these Terms, including the commitments on privacy and data location, are not reduced as a result. We will notify you of any such transfer, and if you are a consumer you may close your account and receive a refund of fees paid for any unused period if you do not wish to continue.
Relationship and headings. Nothing in these Terms creates a partnership, joint venture, agency or employment relationship between you and us. Headings and plain-language summaries are for convenience; they help explain the Terms but do not limit or alter the legal text they accompany.
Communications and language. You agree that we may send you notices and other communications relating to the Service electronically, by email to your account address or recovery address or by notices within the Service, and that such communications satisfy any requirement that they be in writing. Formal legal notices to us must be sent to legal@stellomail.com or by post to our registered office. These Terms are written in English; where we provide a translation, the English version prevails, except where the law of your country of residence requires otherwise.
Contact us
Stellomail Μονοπρόσωπη Ι.Κ.Ε., Ermou 40, 105 63 Athens, Greece. General Commercial Registry (ΓΕΜΗ) no. 123456701000. Website: stellomail.com.
Help with your account, billing and the Service: support@stellomail.com. Legal notices, complaints and questions about these Terms: legal@stellomail.com. Privacy and data protection requests: privacy@stellomail.com. Reports of spam, abuse, illegal content or security issues: abuse@stellomail.com.
Formal notices may also be sent by post to our registered office at the address above.