Home / Custom domain email

Private email for your domain.

Connect a domain you own, create every recipient first, and let Thelemail operate the mail infrastructure.

Keep the address. Hand off the operations.

Custom-domain email keeps your identity attached to a domain you control. Thelemail hosts the mailboxes and operates receiving, sending, spam classification, authentication and sender-reputation work. Unencrypted inbound mail is classified in memory and encrypted to the recipient key before storage.

Your administrator adds the domain, prepares every recipient and changes MX only when setup is complete. Household members and teammates use regular private inboxes after that.

The Thelemail inbox receiving private email on a custom domain

Custom-domain email with the operational work covered.

The domain stays yours. Thelemail supplies the mailboxes, routing, privacy model and delivery infrastructure around it.

A staged DNS connection

Verify ownership first, publish DKIM, SPF and DMARC, optionally publish WKD for compatible encrypted inbound mail, create every mailbox and address, then move MX when the domain is ready.

Managed mail operations

Thelemail runs receiving, queues, sending infrastructure, reputation controls, DNS checks and spam classification.

Encrypted stored content

Mailbox content is encrypted for storage. OPAQUE lets the password unlock a wrapped random account key on the user device. Mail between Thelemail accounts is end-to-end encrypted.

Addresses for people, roles and services

Create private mailboxes, shared addresses and unlimited aliases on the same domain. A workspace anti-abuse guardrail applies. Route each address to the person or group responsible for it.

Bring a domain over deliberately.

The connection flow delays the receiving change until every address and sending record is prepared.

Verify the domain

Add the ownership TXT record while your current mail provider keeps receiving messages.

Prepare authenticated sending

Publish the generated DKIM, SPF and DMARC records before any incoming-mail change. WKD is optional and lets compatible external senders discover your public key.

Create every recipient

Add mailboxes, shared addresses and aliases so every active address has a destination.

Move MX when ready

Switch incoming mail after the recipients exist. The wizard keeps watching the records for drift.

Custom-domain email questions.

Do I have to transfer my domain registration?

Your domain stays with its registrar. Thelemail needs administrator access to the DNS records that verify ownership, authenticate sending and route incoming mail.

Who has to understand DNS?

One administrator handles the connection wizard and DNS records. Other household members or teammates use their mailbox without touching the domain setup.

Can I keep the same addresses if I leave?

Addresses on a domain you own stay under your control. Export the mail in standard formats with the open-source export tool, choose another provider and change the domain MX records.

Read the export tool source

What privacy applies to custom-domain mail?

Stored mailbox content uses zero-access encryption at rest, and messages between Thelemail accounts are end-to-end encrypted. Outbound external mail uses WKD/OpenPGP when a compatible key exists and standard SMTP with TLS where supported otherwise. Optional WKD lets compatible external senders encrypt inbound mail to you. External subject headers remain visible; unencrypted inbound content is classified in memory and encrypted before storage.

Fay ce que vouldras. The only rule of the Abbey of Thélème. Rabelais, Gargantua, 1534.

We wrote down what we can't protect.

The threat model spells out what is encrypted, what is not, and what a server compromise would and would not expose. The gaps we haven't closed yet are listed with it.