Hey all i have just set up a brand new mail server for my company here using zimbra.
Here is the basic set up i am using:
OS: Red Hat Enterprise Linux Server release 5.2
Zimbra: Release 5.0.11_GA_2695.RHEL5_20081117051306 RHEL5 FOSS edition
I am curious is there a way to reject unknown users right at the door? like for example:
l020048:~ jliou$ telnet x.x.x.x 25
Connected to xxxxx.xxx.
Escape character is '^]'.
220 xxxxx.xxx ESMTP Postfix
mail from: firstname.lastname@example.org
250 2.1.0 Ok
rcpt to: email@example.com
250 2.1.5 Ok
It seems to allow anything for mydomain.com to be send on though, the reason why I am asking about this because. In our set up we have gateway servers that use address_verify_maps to verify users. So i would like to be able to recjet non-vaild users right at this level. Is there any way to change this in the zimbra postfix configs with out directly editing main.cf ?. I am also curious so by default is the virtual mailbox table not checked?