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Creating no-reply@domain.com account in Postfix

If you wanted to send emails to users but did not want to receive any replies to the email, you would need to setup a no-reply@domain.com email account. These kind of email ids are useful when sending emails containing forgotten passwords or activation code. Below are the steps for creating such account in Postfix.

1. Identify the file containing alias for Postfix

First, make sure the following line in the ALIAS DATABASE section of the /etc/postfix/main.cf is NOT commented out:

alias_maps = hash:/etc/aliases

2. Create an alias that redirects messages to /dev/null

Edit /etc/aliases and add following entry

devnull: /dev/null

3. Create a virtual email id

Edit /etc/postfix/virtual and add following entry

no-reply@domain.com devnull

4. refresh postfix alias and postfix cache

Execute following commands. (You may require root privileges)

> newaliases

> postfix reload
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Comments

darkstar said…
Your procedure works for postfix mail server.
How do I make it work for the postfix relay on MX server?
Thanks in advance.
May 8, 2009 at 2:24 AM
El Fercho said…
Great tip man!
You will also need to set up, in /etc/postfix/main.cf:
virtual_alias_maps = hash:/etc/postfix/virtual

And remember to run postmap /etc/postfix/virtual, once you entered the aliases on the file.
May 20, 2009 at 3:05 PM
carlos aya said…
For the record, as a fix to the above, I had to put in /etc/postfix/virtual

no-reply@domain.com devnull@localhost


in my relay only postfix setup. Thanks, great resource.
November 24, 2011 at 2:53 PM
Nelson Castillo said…
I had to add:

virtual_alias_maps = hash:/etc/postfix/virtual

And also run:

postmap virtual

Thanks a lot.
October 16, 2014 at 3:25 AM
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