Postfix setup catch-all email accounts using /etc/postfix/virtual

Q. How do I setup cacth-all email accounts under Postfix MTA? For example if an email send to [email protected], [email protected] and [email protected], should be sent to the same email address.

This is useful if anyone of user mistypes an email address when they send it to me, or just guesses at a valid email address, then they will likely get an error message from my server such as user / email mail box does not exist. So I wish to set up a “catch all” address

A. Mapping is done using /etc/postfix/virtual file.
# vi /etc/postfix/virtual
Append code as follows, replacing domain and emailusername with actual values:
@yourdomain.com emailusername

Save and close the file. Run following command:
# postmap /etc/postfix/virtual

Also make sure you have following line in /etc/postfix/main.cf file:
virtual_alias_maps = hash:/etc/postfix/virtual

If you just added above, line reload postfix:
# service postfix reload

Caution: if you set up a catch-all email address, you will likely receive more unsolicited (spam) email.

Posted by: SXI ADMIN

The author is the creator of SXI LLC and a seasoned sysadmin, DevOps engineer, and a trainer for the Linux operating system/Unix shell scripting. Get the latest tutorials on SysAdmin, Linux/Unix and open source topics via RSS/XML feed or weekly email newsletter.