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<p class=MsoNormal><span style='color:#1F497D'>As a bit of extra knowledge, if
you don’t know the exact package name, from the CLI:<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>aptitude search libasl<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>That will return a list of any
packages that you have in the cache that have libasl in them. Then hit it with
apt-get install <package name>. If you don’t see the package you’re
looking for, make sure you run:<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>apt-get update<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>Then retry the search.<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>Matt Unger<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
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<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>
tclug-list-bounces@mn-linux.org [mailto:tclug-list-bounces@mn-linux.org] <b>On
Behalf Of </b>Smith, Craig A<br>
<b>Sent:</b> Thursday, March 11, 2010 6:25 PM<br>
<b>To:</b> tclug-list@mn-linux.org<br>
<b>Subject:</b> [tclug-list] Postfix, Comcast, Relayhost and port 587<o:p></o:p></span></p>
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<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>I run a hobby server on a Comcast residential connection. <o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>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.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal> relayhost = smtp.comcast.net<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Last year, there was discussion on this list about Comcast
blocking port 25. I was unaffected at that time. <o:p></o:p></p>
<p class=MsoNormal><a
href="http://archives.mn-linux.org/pipermail/tclug-list/2009-February/thread.html">http://archives.mn-linux.org/pipermail/tclug-list/2009-February/thread.html</a>
<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>However, last month on or after Feb 8, 2010, Comcast
stopped accepting my port 25 connections. <o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal> $ telnet smtp.comcast.net 25<o:p></o:p></p>
<p class=MsoNormal> Trying 76.96.30.117...<o:p></o:p></p>
<p class=MsoNormal> telnet: Unable to connect to remote host: Connection
timed out<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>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. <o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>I’ve reconfigure postfix for port 587 per <o:p></o:p></p>
<p class=MsoNormal><a
href="http://www.kclug.org/pipermail/kclug/2008-February/032558.html">http://www.kclug.org/pipermail/kclug/2008-February/032558.html</a>
<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>and setup <span style='font-size:10.0pt'>SMTP Authentication
per </span><o:p></o:p></p>
<p class=MsoNormal><a href="http://www.freelock.com/kb/postfix-relayhost">http://www.freelock.com/kb/postfix-relayhost</a>
<o:p></o:p></p>
<p class=MsoNormal>but I’m stuck on the last step:<o:p></o:p></p>
<p class=MsoNormal style='text-autospace:none'><o:p> </o:p></p>
<p class=MsoNormal style='text-autospace:none'> # urpmi --media main
libsasl2-plug-login libsasl2-plug-plain<o:p></o:p></p>
<p class=MsoNormal style='text-autospace:none'> bash: urpmi: command not
found<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Can someone supply the magical apt-get incantation to get me
started?<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>I’m running postfix 2.3.8 on Debian and can live with only
out-going mail. <o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
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