If this server is just so you can use your own MUA and then use GMails SMTP. There web page has explicit instructions. I have had better luck with POP# vs IMAP. Ports are list also in that set of instructions. VP On Thu, Mar 11, 2010 at 18:24, Smith, Craig A <Craig.A.Smith at honeywell.com> wrote: > I run a hobby server on a Comcast residential connection. > > > > A number of years ago, I noticed larger organizations (Gmail, etc) began > rejecting email from dynamic ip. The solution was a “smart host” to relay > email. Comcast would accept connections on port 25 and forward from their > well-know (unblocked) ip address. Here’s the line I added to > /etc/postfix/main.cf that made it work. > > > > relayhost = smtp.comcast.net > > > > Last year, there was discussion on this list about Comcast blocking port > 25. I was unaffected at that time. > > http://archives.mn-linux.org/pipermail/tclug-list/2009-February/thread.html > > > > However, last month on or after Feb 8, 2010, Comcast stopped accepting my > port 25 connections. > > > > $ telnet smtp.comcast.net 25 > > Trying 76.96.30.117... > > telnet: Unable to connect to remote host: Connection timed out > > > > I called Comcast and they said “that’s right, use port 587.” I can telnet > to port 587 , but I believe this requires authentication, presumably with my > Comcast credentials. > > > > I’ve reconfigure postfix for port 587 per > > http://www.kclug.org/pipermail/kclug/2008-February/032558.html > > > > and setup SMTP Authentication per > > http://www.freelock.com/kb/postfix-relayhost > > but I’m stuck on the last step: > > > > # urpmi --media main libsasl2-plug-login libsasl2-plug-plain > > bash: urpmi: command not found > > > > Can someone supply the magical apt-get incantation to get me started? > > > > I’m running postfix 2.3.8 on Debian and can live with only out-going mail. > > > > > > > > _______________________________________________ > TCLUG Mailing List - Minneapolis/St. Paul, Minnesota > tclug-list at mn-linux.org > http://mailman.mn-linux.org/mailman/listinfo/tclug-list > > -- -- If there is a question to the validity of this email please phone for validation. Proudly presented by Mutt, GNUPG, Vi/m and GNU/Linux via CopyLeft. GNU/Linux is about Freedom to compute as you want and need to, and share your work unencumbered and have others do the same with you. Key : 0xD53A8E1