[CS-FSLUG] Server masquerading as client

Jonathan E. Brickman jeb at joshuacorps.org
Wed Apr 8 22:48:27 CDT 2009

This is exactly the same topic as recently covered.  I might have the 
old info available; let me know if I should try to find it.  The gist of 
it is, it doesn't matter if it's a client or not, what matters is 
whether the transmitter is set to authenticate to smarthost.  If you are 
authenticating to your smarthost in the way which your smarthost (the 
ISP SMTP server) requires, it will go, regardless of what the 
transmitter actually is.


> Pardon my ignorance.
> Is there a means by which an internal mail server on a Linux box can
> masquerade itself as a mail client? Most mail service will bounce a
> relay, but will cooperate all day long with standard mail clients.
> I realize this might open a Pandora's box of evil, but I'm not
> interested in dirty work. I have several accounts on several different
> services, and there seems no way to run them all from a single console
> client. I understand there are ways to setup, say Postfix, with multiple
> relay hosts, but most of my services block relays from a private
> machine. Of course, we all know that's a spam reduction measure, and I
> fully accept that. Is there a mail server I can run which will talk to
> the distant mail host in such a way as to prevent looking like a mail
> server, and appear as a client?

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