What is a catch-all address?
A catch-all address is a mailbox that receives all emails for which no specific mailbox or forwarding rule exists.
Example:
Your domain is your-domain.com and you have a mailbox webmaster@your-domain.com.
If you set this mailbox as a catch-all, the server will deliver emails sent to other addresses such as info@your-domain.com or contact@your-domain.com to this mailbox as well.
If you do not set up a catch-all, the server will return emails sent to a non-existent address to the sender with an error message.
Notes on Use
Catch-all mailboxes can receive a large number of spam messages. This can cause storage usage to increase rapidly.
You should check your emails regularly and delete or archive them.
Set Up a Catch-all Address
- Open
Mailboxes. - Click on
Manage Catch-All. - Select the desired catch-all account.
- Click
Set.
Disable Catch-all
To disable the Catch-all feature, select the No Catchall option and save the setting.
Support for Plus Addressing (Subaddressing)
With the softwareupdate to Debian Trixie email accounts support plus addressing. This means that a mailbox can be used as the destination address via subaddresses in the format emailaccount+subaddress@domain.de. Emails sent to such an address will be delivered to the mailbox of emailaccount@domain.de.
Note: This may lead to unexpected behavior if you are currently using a catch-all mailbox and expect emails in the format
emailaccount+subaddress@domain.deto be delivered there. These emails will now be delivered directly to the mailbox ofemailaccount@domain.de.