Re: [exim] 587 for submission

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Autor: Marc MERLIN
Data:  
A: Lars Mainka
CC: Marc Sherman, Exim Users
Assumptes vells: Re: [exim] Why is STARTTLS preferred over tls_on_connect_ports?
Assumpte: Re: [exim] 587 for submission
On Wed, Mar 16, 2005 at 02:53:45PM +0100, Lars Mainka wrote:
> Don't know, but IMHO SMTP should only be used on port 25. Every other
> port have to be known before to connect to, and this is usually only
> possible for known mail hosts.


Actually 587 is quite useful: you can set it as an accept STARTTLS/AUTH
only port for all your remote users who would otherwise get their
outbound 25 traffic blocked.
I've never liked the fact that MUA to MTA communication used the same
port as MTA to MTA communication. It just made configuration and
filtering that much harder. 587 is poised to fix this.

Marc
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