-mails directed to users who don't exist as real users

[aaronde]

Hi,

I have installed sendmail, but by default, sendmail will reject e-mails directed to users who don't exist as real users or as aliases.

I want sendmail to accept all incoming email and redirect mail for unknown users to a particular user such as postmaster.

How do I do this?

Thanks Alot!!!!

 

[RhythmAce]

You can use the virtusertable. It looks a lot like the allias file but you can doo a lot more with it. For example you can list all real users then create a catch-all for the ones that don't exist. I block this type myself because it is always spam. That being said this is how you would do it:

joe@domain.com    joe
webmaster@domain.com    fred
fred@domain.com    fred
jane@domain.com    jane@isp.net
@domain.com   junkmail

If a user is not in the list, it falls through to the catch-all "@domain.com" and sends it to a user called "junkmail". This user will not have a login shell or home directory for obvious reasons so when you create the user set /sbin/nologin as the shell and /dev/null as the home directory. You only need a password if you will be accessing this email account from a remote client.

 

[RhythmAce]

I guess I should have told you how to build the virtusertable.db file. Just issue this command:

makemap hash /etc/mail/virtusertable > /etc/mail/virtusertable.db

 

[aaronde]

Thanks alot mate everything worked

Thanks
Aaron