[CentOS] You can't get there from here -- SOLVED

[mouss]

Kai Schaetzl wrote:
> Miark wrote on Fri, 18 Jan 2008 17:55:32 -0500:
>
>   
>> The winning solution
>>     
>
> Nevertheless, Bowie's solution is the correct one.
>   

Indeed, 587 is the standard port for mail submission.

http://www.ietf.org/rfc/rfc2476.txt
http://www.ietf.org/rfc/rfc5068.txt

and since "submission" is found in /etc/services (at least on recent 
systems), one can use it in firewall rules...
It is also hoped that future versions of MUAs will be 
submission-friendly (propose this port and check whether STARTTLS and/or 
SASL AUTH is needed, ... etc).

In addition, the service is already defined in master.cf. one just needs 
to uncomment it.