Setting up SMTP?

[Ow Mun Heng]

On Wed, 2004-10-27 at 11:20, Alexander Dalloz wrote:

> DAEMON_OPTIONS(`Addr=123.123.123.45, Port=smtp, Name=MTA,
> InputMailFilters=milter-sender;clamav;mimedefang')dnl
> DAEMON_OPTIONS(`Addr=127.0.0.1, Port=smtp, Name=MTA)dnl
> DAEMON_OPTIONS(`Addr=123.123.123.45, Port=submission, Name=MSA,
> M=Ea')dnl
> 

> Third line: I configure the MSA, which is the submission service, to be
> bound to a specific IP and change the modifier, which is by default only
> "M=E". I set it to be "M=Ea" and this way force authentication on port
> 587. To be able to change the MSA you have to deactivate the standard
> MSA before:


May I ask, what do you use the MSA for? I believe it's only for a
_local_ mail submission. But what is the difference then to just point
the submission to port 25 default?

I can understand the usage of MSA is  only port 25 is closed and you're
not running as a mail-hub from internet.