Setting Up a Catch-All Inbox

A catch-all address captures emails sent to any misspelled or non-existent address on your domain. Instead of bouncing back to the sender, it lands in a mailbox of your choice.

Who this is for

• Businesses who don't want to miss leads due to typos (e.g., sles@example.com).
• Solo founders who want to use dynamic aliases (e.g., twitter@example.com, amazon@example.com) without creating them first.

Step-by-step

1. Go to Domains and click on your active domain.
2. Switch to the Connection tab.
3. Scroll to the Catch-all Inbox card.
4. Change the selection from No catch-all to Send unknown addresses to:.
5. Select a valid existing mailbox from the dropdown.
   • Note: You must have created at least one mailbox first.
6. Click Save Catch-all Settings.

What happens next?

• Before: An email to random123@yourdomain.com would bounce with "550 User not found".
• After: An email to random123@yourdomain.com is delivered to your chosen catch-all mailbox. The "To" header remains random123@..., so you can still filter it.

Common mistakes & quick fixes

• Symptom: "Spam flood."
  • Cause: Catch-alls catch everything, including spam sent to dictionary words.
  • Fix: If the spam volume is too high, disable the catch-all and create specific aliases instead.
• Symptom: Can't select a mailbox.
  • Cause: You haven't created one yet.
  • Fix: Go to Mailboxes and create a primary user first.

See also

• Creating a New Mailbox
• Mailbox Forwarding