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:
>
> zviman@???
> SMTP error from remote mail server after MAIL FROM:<muz@???>
> 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 support_biz@???
>
> ------ This is a copy of the message, including all the headers. ------
>
> Return-path: <muz@???>
> Received: from localhost ([127.0.0.1] helo=www.zviman.name)
> by localhost.localdomain with esmtp (Exim 4.52)
> id 1FTrKb-0007AE-EE
> for zviman@???; 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: <61215.69.250.247.7.1144894393.squirrel@www.zviman.name>
> Date: Thu, 13 Apr 2006 02:13:13 -0000 (UTC)
> Subject: test
> From: muz@???
> To: zviman@???
> 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 <= muz@??? H=localhost
> (www.zviman.name) [127.0.0.1] P=esmtp S=691
> id=61215.69.250.247.7.1144894393.squirrel@www.zviman.name
> 2006-04-13 02:13:14 1FTrKb-0007AE-EE ** zviman@??? R=dnslookup
> T=remote_smtp: SMTP error from remote mail server after MAIL
> FROM:<muz@???> 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
> support_biz@???
> 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
>
