On 10/07/11 18:38, Samantha wrote:
> Guys
>
> How would you enforce authentication upon all users (port 25)
>
> Reason:
> We share a 3g ip pool and I want to enforce smtp authentication to
> prevent users from other isps from accessing the smtp port, as a further
> security measure we want to enforce this upon all users.
>
> Samantha
>

SMTP Auth is an all or nothing proposition.  If you enforce SMTP Auth on 
port 25, how do you get email from other mail servers on the Internet? 
They won't know how to Authenicate...

That said, in the Webadmin, go to Global Settings, Mail Services, Click 
on Advanced. and under Ports, third line down, 'SMTP ports which require 
smtp authentication, typically 587'.

Lyle Giese
LCR Computer Services, Inc.