From: Charles Marcus (CMarcusMedia-Brokers.com)
Date: Tue May 13 2008 - 06:47:14 CDT

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On 5/13/2008, Lee Quince (Lee.Quinceiqunity.com) wrote:
> Ok say your ISP is force9.net, your staying in a hotel and you want
> to send email without changing your SMTP setting's. force9 servers
> will only allow a relay for there connected network. Hence while you
> are in the hotel and using our network relay is denied. To get around
> this we basically redirect port 25 TCP using NAT to our postfix
> server's, (we do some grey listing and max messages, per min, ClamAV
> etc to protect ourselves.)

This is precisely what the submission port (587) is for.

Just have everyone use that, and everything will 'just work' (as long as
the hotspot provider isn't brain dead and blocks outbound port 587
connections)...

--

Best regards,

Charles

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