Menekhem M. Zviman wrote:
Hello,
My ISP, comcast.net, does not allow direct connection to their mail
server.
Nor should they.
Below is a log entry of an attempt to send mail via SquirrlMail
-> Courier IMAP -> Exim.
In all probability, comcast.net expect a 'subscriber' to connect
from an MUA, and on the submission port, 587.
Exim, a 'client MTA' in this instance, will be attempting to
connect to port 25, hence is treated as an attempt to 'relay',
as comcast will see yours coming from within its own IP block.
comcast may permit port 25 instead of 587, but from within its
own IP block only with subscriber authentication (+TLS,
probably) IOW - login from your comcast account with ID & PWD -
which Exim, as an MTA, would not be offering.
Your immediate problem might be alleviated if you use an MUA
instead of an MTA - either on your own workstation, or *comcast*
Webmail interface, not your own - at least when sending to
comcast accounts.
And/or - order a fixed IP from comcast and have them enter a PTR
record for your domain.tld into their DNS.
- Which may have to wait on a spell of severe weather in Hell.
RFC-compliant MTA's are not expected to operate without a
fixed-IP and proper DNS entry.
FWIW, for at least the past six months we have logged massive
spam/zombie attempts from comcast.net, and not a single
legitimate message (before we finally blacklisted them).
That they are now blocking improper MTA use is a good sign.
HTH,
Bill
Here is the bounced message:
This message was created automatically by mail delivery software.
A message that you sent could not be delivered to one or more of its
recipients. This is a permanent error. The following address(es) failed:
[EMAIL PROTECTED]
SMTP error from remote mail server after MAIL FROM:<[EMAIL PROTECTED]>
SIZE=1736:
host gateway-r.comcast.net [204.127.198.26]: 550-69.250.247.7 blocked by
ldap:ou=rblmx,dc=comcast,dc=net
550 Comcast.net subscribers are not permitted to directly connect to
this mail
server. If you are a Comcast Commercial Services customer and need support,
please contact [EMAIL PROTECTED]
------ This is a copy of the message, including all the headers. ------
Return-path: <[EMAIL PROTECTED]>
Received: from localhost ([127.0.0.1] helo=www.zviman.name)
by localhost.localdomain with esmtp (Exim 4.52)
id 1FTrKb-0007AE-EE
for [EMAIL PROTECTED]; Thu, 13 Apr 2006 02:13:13 +0000
Received: from 69.250.247.7
(SquirrelMail authenticated user muz)
by www.zviman.name with HTTP;
Thu, 13 Apr 2006 02:13:13 -0000 (UTC)
Message-ID: <[EMAIL PROTECTED]>
Date: Thu, 13 Apr 2006 02:13:13 -0000 (UTC)
Subject: test
From: [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
User-Agent: SquirrelMail/1.4.4
MIME-Version: 1.0
Content-Type: text/plain;charset=iso-8859-1
Content-Transfer-Encoding: 8bit
X-Priority: 3 (Normal)
Importance: Normal
test
Here is the Exim Log
2006-04-13 02:13:13 1FTrKb-0007AE-EE <= [EMAIL PROTECTED] H=localhost
(www.zviman.name) [127.0.0.1] P=esmtp S=691
[EMAIL PROTECTED]
2006-04-13 02:13:14 1FTrKb-0007AE-EE ** [EMAIL PROTECTED] R=dnslookup
T=remote_smtp: SMTP error from remote mail server after MAIL
FROM:<[EMAIL PROTECTED]> SIZE=1736: host gateway-r.comcast.net
[204.127.198.26]: 550-69.250.247.7 blocked by
ldap:ou=rblmx,dc=comcast,dc=net\n550 Comcast.net subscribers are not
permitted to directly connect to this mail server. If you are a Comcast
Commercial Services customer and need support, please contact
[EMAIL PROTECTED]
2006-04-13 02:13:14 1FTrKc-0007AN-3o <= <> R=1FTrKb-0007AE-EE
U=Debian-exim P=local S=1872
2006-04-13 02:13:14 1FTrKb-0007AE-EE Completed
I configured Thunderbird to use smtp.comcast.net as the smtp and we all
use my password. Is there a way to configure Exim to use the ISP server
or alternatively configure it to log to the sever as a user supplying a
password.
Thanks,
Muz
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