[TriLUG] sendmail and alternate ports
Thu, 6 Jun 2002 16:15:13 -0400
To do it only for your domain, use /etc/mail/mailertable:
where 'mysmtp' is an exact duplicate of the 'esmtp' mailer definition,
except for the port number in 'A=...'. Of course, change 2525 to whatever
alternate port number you wish to use.
At HAHT we run a firewall that reflicts a specific high port (which will
remain nameless) back down to port 25 and then redirects it to one of our
Best of Luck
On Thursday 06 June 2002 05:52 am, Rodent of Unusual Size wrote:
> I'm at LinuxTag in Germany, and whomever is providing the network
> is blocking port 25 (SMTP). Don't ask me why.. :-/
> Regardless.. Normally, when sendmail speaks to another system
> it will use port 25. Does anyone know if there's a way to tell
> it "when you connect to mail.foo.com, use port 4000 instead of 25;
> go ahead and keep using 25 for all other systems"?