From: Avi Schwartz (no email)
Date: Sat May 10 2008 - 16:38:21 EDT
I was notified by Comcast that I need to make changes to the way I send
email via their servers. The changes required a port change and start
using username and password. To test that this works I used Thunderbird
and set the following:
Server Name: smtp.comcast.net
Use name and password are checked and the User Name box contains my user
Use secure connection: No
Using these setting I am able to send emails via their servers but
obviously this is not what I want to do, this was just testing that
these settings are valid.
I then changed my main.cf to have the following lines:
smtp_sasl_auth_enable = yes
smtp_sasl_password_maps = hash:/etc/postfix/sasl_passwd
In sasl_passwd I entered the following information:
did a postmap on the file to create sasl_passwd.db and reloaded the
configuration using postfix reload.
When I try to send an email via my server I find the following in the log:
May 10 15:15:11 coral postfix/qmgr: 73A64F64001:
from=<>, size=1117, nrcpt=1 (queue active)
May 10 15:15:11 coral postfix/smtp: connect to
smtp.comcast.net[184.108.40.206]: Connection refused (port 587)
May 10 15:15:11 coral postfix/smtp: 73A64F64001:
to=<>, relay=none, delay=2253, delays=2253/0.02/0.16/0,
dsn=4.4.1, status=deferred (connect to smtp.comcast.net[220.127.116.11]:
At this point I am not sure where to go from here.
Using telnet I can see the following:
avi at minnow:~$ telnet smtp.comcast.net 587
Connected to smtp.g.comcast.net.
Escape character is '^]'.
220 OMTA06.emeryville.ca.mail.comcast.net comcast ESMTP server ready
250-OMTA06.emeryville.ca.mail.comcast.net hello [18.104.22.168],
pleased to meet you
250-AUTH LOGIN PLAIN CRAM-MD5