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Proton Mail

Proton Mail provides business mailboxes at your own domain on supported paid plans.

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What do you need for Proton Mail at your own domain?

You need control of the domain and a paid plan. Proton lists three custom domains on Mail Essentials for business. Create the addresses people need before changing the records that direct incoming mail.

Can the team use a desktop mail app?

Paid Proton Mail plans support Bridge, an app for Windows, macOS and Linux that connects supported desktop clients. Check which desktop and phone apps your team will use before moving.

How is sending from an app different from reading the inbox?

Proton documents SMTP Submission, a way for an app to send through a paid Proton Mail account using a custom-domain address. Messages sent that way are not end-to-end encrypted. For app receipts, decide separately how you will detect failed deliveries and where replies should go.

What does the Proton export give you?

The Proton Mail Export Tool saves decrypted emails and metadata as EML and JSON files. Check which format your destination can read and protect the exported copies separately. The mail export is only one part of moving a domain and its addresses.

How would you keep replies and automated messages separate?

Draw an inbox for a fictional repair shop and a separate arrow for automatic booking confirmations. Use no account or mail sending.

  1. List the addresses
    Write the people and addresses the new inbox must support.
  2. Trace a message
    Trace a reply from a customer back to the person who will answer it.
  3. Leave a rollback point
    Mark the separate points where you would verify receiving, outbound delivery and readable copies.