Terms of Service

What this is

comail is a cooperative SMTP submission relay operated by Atmosphere Mail LLC ("we", "us"). It accepts authenticated mail from members whose identity is verified via atproto DIDs, signs outbound mail with DKIM, and delivers it to recipient MTAs. The service is currently free during alpha and provided on a best-effort basis. Paid tiers will be introduced with at least 30 days' notice; a free tier will remain available for low-volume senders. See the FAQ for the current pricing plan.

Eligibility and authentication

To enroll you must prove control of both a DID and the domain you intend to send from. We verify domain ownership via a DNS TXT record, the same primitive Let's Encrypt uses. You are responsible for safeguarding the API key issued at enrollment. We may revoke access if your DID, domain, or handle is lost, transferred, or disputed.

What you may send

Use of the relay is subject to our Acceptable Use Policy. Send only your own mail, to recipients who asked for it, and honor unsubscribe requests. Violating the AUP can result in throttling, labeling, or suspension without notice.

Service provided "AS IS"

THE SERVICE IS PROVIDED AS IS AND AS AVAILABLE, WITHOUT WARRANTIES OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, NON-INFRINGEMENT, OR UNINTERRUPTED OPERATION. We do not warrant that mail submitted through the relay will be accepted, delivered, or placed in any particular inbox folder.

Limitation of liability

TO THE MAXIMUM EXTENT PERMITTED BY LAW, Atmosphere Mail LLC and its members, officers, and contributors WILL NOT BE LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, OR PUNITIVE DAMAGES, OR FOR LOST PROFITS, REVENUE, BUSINESS, OR REPUTATION, ARISING OUT OF OR IN CONNECTION WITH YOUR USE OF THE SERVICE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. Our aggregate liability for any claim arising out of or relating to the service is limited to one hundred U.S. dollars ($100).

Ending the relationship

You may stop using the relay at any time. The primary path is self-service: /account/settings/delete schedules deletion with a 14-day reactivatable cooldown, then a hard-delete and an export window. The full lifecycle and field-level retention table is at /privacy/data-deletion. If you can't reach the dashboard (lost handle, atproto identity rotated, locked out), email postmaster@atmos.email from a mailbox you can prove control of, or sign the request with your DID's signing key, and we'll process it within 14 days.

We may suspend or terminate access for any reason, including AUP violations, legal requirements, or discontinuation of the service. Upon termination we will stop accepting mail from your DID; terminal message logs are retained under the retention schedule disclosed in the Privacy Policy.

Updates to these terms

We may update these terms as the service evolves. Notices we send you go to the contact email on file. Notices you send us go to postmaster@atmos.email. We will give at least 30 days' notice by email before material changes to these terms take effect; non-material changes (typo fixes, clarifications that do not affect your rights or obligations) may take effect on publication. Continued use of the relay after the effective date of an update means you accept the revised terms.

Boilerplate

Survival. Sections §4 (Warranties), §5 (Liability), §9 (Governing law), and any obligation that by its nature should survive (including suppression-list retention and DKIM-key revocation) will continue in effect after this agreement ends.

Assignment. You may not assign these terms or transfer your account without our written consent. We may assign this agreement to a successor entity (for example, in connection with a merger, reorganization, or transfer to a cooperative vehicle that takes on operation of the relay) and will notify you by email at least 30 days before the effective date of the assignment.

Severability. If any provision of these terms is held invalid or unenforceable, the remaining provisions stay in effect.

No waiver. Our failure to enforce any provision is not a waiver of our right to enforce it later.

Entire agreement. These terms, the Acceptable Use Policy, the Privacy Policy, and the Data Processing Agreement (if your organization signs one) are the entire agreement between you and Atmosphere Mail LLC and supersede any earlier understanding about the relay.

Jurisdiction

These terms are governed by the laws of the State of Washington, United States, without regard to its conflicts of law rules. Any dispute that cannot be resolved by correspondence with postmaster@atmos.email will be heard in the state or federal courts sitting in King County, Washington.

Reach us

Atmosphere Mail LLC, postmaster@atmos.email. For abuse reports use abuse@atmos.email.