How to SMTP (Email) Server Fedora 6?
Les Mikesell
lesmikesell at gmail.com
Tue Feb 13 05:36:01 UTC 2007
Mikkel L. Ellertson wrote:
> It is also reasonable for a machine to only need to deliver locally
> generated mail.
It wouldn't be much fun if all machines did that.
> I like the fact that it is locked down by default. Then again, I can
> remember when most mail servers were open relays. You could spoof a
> message by telnetting to port 25 on the mail server you wanted the
> message to come from, and feeding it your message. The server would
> then happily relay the message to the destination, and it would have
> all the correct headers...
Sendmail does not relay unless you explicitly permit it to by defining
the addresses allowed in the access database or set up smtp
authentication - and it hasn't for years.
--
Les Mikesell
lesmikesell at gmail.com
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