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madylarian
The curmudgeonly
Premium
join:2002-01-03
Parkville, MD

reply to englund

Re: Comcast cut off outgoing SMTP server

said by englund:

After awhile Comcast shut off their outgoing email server. When they called customer support Comcast claimed that they no longer offer an outgoing email server for non Comcast email and that this new policy had been in effect for many months.
Was you client connected via Comcast or Earthlink? Though I have not heard of it, this does not seem all that outrageous for those with non-Comcast connections, even if they had legitimate access to the Comcast servers. On the other hand, I have been using Comcast to send email from my non-Comcast, personal domain return email address since @Home days and never had a problem. While I do not send much at a time, it is the account I use the most, by far.

mady
--
Honi soit qui mal y pense

NormanS
Premium,MVM
join:2001-02-14
San Jose, CA
kudos:4
Reviews:
·SONIC.NET
·Pacific Bell - SBC

said by madylarian:

Was you client connected via Comcast or Earthlink? Though I have not heard of it, this does not seem all that outrageous for those with non-Comcast connections, even if they had legitimate access to the Comcast servers.
I can't prove that is still works this way. Back when my niece was having a spam problem, I ran her email through my mail server (my MTA executed a POP fetch from the Comcast POP3 server, she executed a POP fetch from my POP3 server; my MTA filtered her email), I tested the Comcast SMTP server a couple of times. This was one result:
Return-path: <%User_ID%@comcast.com>
Received: from rwcrmhc12.comcast.net (216.148.227.154) by aosake.net (Mercury/32 v4.01b) with ESMTP ID MG000008;
23 Jan 2006 02:41:22 -0800
Received: from megumi (adsl-71-132-7-97.dsl.sntc01.pacbell.net[71.132.7.97])
by comcast.net (rwcrmhc14) with SMTP
id <200601231041250140051snke>; Mon, 23 Jan 2006 10:41:25 +0000
Message-ID: <000901c62009$8c194a60$6466a8c0@aosake.net>
From: "Just Me" <%User_ID%@comcast.com>
To: <%User_ID%@aosake.net>
Subject: Just checking.
Date: Mon, 23 Jan 2006 02:41:12 -0800
MIME-Version: 1.0
Content-Type: multipart/alternative;
boundary="----=_NextPart_000_0005_01C61FC6.79051640"
X-Priority: 3
X-MSMail-Priority: Normal
X-Mailer: Microsoft Outlook Express 6.00.2800.1478
X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1478
X-CC-Diagnostic: pacbell.net (2), comcast.net (2)
Ah...I finally found the other tests; the ones without the Comcast email address. Here is another example:
Return-path: <%User_ID%@netscape.net>
Received: from rwcrmhc14.comcast.net (216.148.227.89) by aosake.net (Mercury/32 v4.01b) with ESMTP ID MG000006;
2 May 2005 17:09:46 -0700
Received: from megumi (adsl-67-116-50-149.dsl.sntc01.pacbell.net[67.116.50.149])
by comcast.net (rwcrmhc14) with SMTP
id <2005050300094001400gr4ike>; Tue, 3 May 2005 00:09:40 +0000
Message-ID: <001501c54f74$65c2e800$6466a8c0@aosake.net>
Reply-To: "NormanS" <silly.kid@playhouse.invalid>
From: "NormanS" <%User_ID%@netscape.net>
To: <%User_ID%@aosake.net>
Subject: Comcast relay.
Date: Mon, 2 May 2005 17:09:19 -0700
MIME-Version: 1.0
Content-Type: multipart/alternative;
boundary="----=_NextPart_000_0011_01C54F39.ADA30780"
X-Priority: 3
X-MSMail-Priority: Normal
X-Mailer: Microsoft Outlook Express 6.00.2800.1478
X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1478
X-CC-Diagnostic: pacbell.net (2)
Older than the first. Niece has since closed her account. Too much spam; my filtering was just a test of concept. At the time I was running the test, the SBC AUP/TOS was closer to the Comcast AUP/TOS about running servers. SBC lightened up some time after I finished the test.

A question for englund See Profile: Did Comcast give you a hint about the volume of email they were seeing? I can't imagine them getting antsy over 100-200 RCPTs on just one day in any given month. They would probably be concerned with 500, or more, on a single day in any given month, or upwards of 150 per day. As I said, residential Internet services were not intended for large mailings. Of course, the numbers could be fuzzy, given the allowance for multiple users in a given household.

--
Norman
~Oh Lord, why have you come
~To Konnyu, with the Lion and the Drum

englund

join:2003-02-21
Novato, CA

1 edit

I think their list contained several thousand emails. But the strange part was when the client called Comcast they were simple told that Comcast did not allow ANYONE to use the outgoing server unless they used their Comcast email.

I was actually on the a conference call with Comcast and even talked to a supervisor. At that point I didn't even know the client had used a mass emailer. And Comcast never mentioned they've done ANYTHING to their account - all they kept telling me was that it was a new policy that had been in effect for several months. When I pointed out that this was ridiculous that I was using Comcast's outgoing servers (in a different city) with several POP email accounts and the clients email had worked up until today, the supervisor said he could not speak to why it had worked before as he didn't know how my email client was configured but it was Comcast policy that you could only use the outgoing server with Comcast email

I was beside myself trying to explain that this was totally crazy. It wasn't until after I got off the phone with Comcast that the client told me about the mass mailing and then it was obvious what had happened. Comcast simply shut down access to the outgoing server, but made no mention of this to the client who had called customer support multiple times through out the day (along with multiple calls to Earthlink trying to figure out why their email had stopped working).

I understand that the client shouldn't be using Comcast for this type of mailing (unfortunately the client did not). The bummer is that Comcast doesn't appear willing to allow access to the outgoing sever on this account and now several of their POP accounts (that don't have a mail server) no longer can sent mail.

As I mentioned earlier this happened to me several years ago, but it was a simple matter to explain to Comcast (I forgot the name of the department) the situation and the problem was fixed. I'm thinking instead of looking at each case Comcast is simply saying it's our policy not to allow anyone access to the outgoing server (even though that's total untrue).


englund

join:2003-02-21
Novato, CA

reply to madylarian
The client was connected using Comcast - but their site is hosted on Earthlink and so use the Earthlink email address. (They didn't like using the outgoing Earthlink server as it tended to be slow at times when sending large files.)


NormanS
Premium,MVM
join:2001-02-14
San Jose, CA
kudos:4
Reviews:
·SONIC.NET
·Pacific Bell - SBC

reply to englund

said by englund:

I understand that the client shouldn't be using Comcast for this type of mailing (unfortunately the client did not). The bummer is that Comcast doesn't appear willing to allow access to the outgoing sever on this account and now several of their POP accounts (that don't have a mail server) no longer can sent mail.
I would suspect that the client has had a port 25 block imposed on them. Comcast will impose a port 25 block on outbound connections when they perceive that the subscriber is being abusive. The last word that I got was that the block will remain indefinitely.

Have the subscriber reconfigure their client to use port 465 with SSL. It that works, fine. If not, well; they were using the service improperly. There are many options. I got tired of the spam to my ISP account and set up my own domain.

Also:

AOL Mail (SMTP/IMAP, free)
AIM Mail (SMTP/IMAP, free)
GMail (SMTP/POP3, free)
Lycos Mail (SMTP/POP3,$19.99 per year)
MSN Hotmail (HTTPMail, $19.95 per year)
Yahoo! Mail (SMTP/POP3, $19.99 per year)
--
Norman
~Oh Lord, why have you come
~To Konnyu, with the Lion and the Drum

englund

join:2003-02-21
Novato, CA

said by NormanS:

I got tired of the spam to my ISP account and set up my own domain.

Also:

AOL Mail (SMTP/IMAP, free)
AIM Mail (SMTP/IMAP, free)
GMail (SMTP/POP3, free)
Lycos Mail (SMTP/POP3,$19.99 per year)
MSN Hotmail (HTTPMail, $19.95 per year)
Yahoo! Mail (SMTP/POP3, $19.99 per year)
Well no one wants to send out business emails with AOL, Hotmail, Gmail, etc accounts. (These are legitimate emails about the organization - not unsolicited junk.) They have their own domain (as well as several client domains they manage) and so use their domain email with a Comcast business account (not residential service). So you'd think if you call customer support they wouldn't give you some baloney line about a company wide policy about banning outbound connections but would instead inform the client what a block had been placed and why.

NormanS
Premium,MVM
join:2001-02-14
San Jose, CA
kudos:4
Reviews:
·SONIC.NET
·Pacific Bell - SBC

Click for full size
GMail account and reply.
Click for full size
Yahoo! Mail Plus account, and reply.
said by englund:

Well no one wants to send out business emails with AOL, Hotmail, Gmail, etc accounts. (These are legitimate emails about the organization - not unsolicited junk.) They have their own domain (as well as several client domains they manage) and so use their domain email with a Comcast business account (not residential service). So you'd think if you call customer support they wouldn't give you some baloney line about a company wide policy about banning outbound connections but would instead inform the client what a block had been placed and why.
GMail and Yahoo! Mail Plus allow you to send email from your domain. Here are examples, including screen shots detailing a reply composition:
GMail servers ('smtp.gmail.com'):
Return-Path: <%User_ID%@gmail.com>
Received: from rly-yc06.mail.aol.com (rly-yc06.mail.aol.com [172.18.205.149])
by air-yc03.mail.aol.com (v113.6) with ESMTP id MAILINYC31-6ef453fd4276e;
Wed, 25 Oct 2006 17:16:23 -0400
Received: from nz-out-0102.google.com (nz-out-0102.google.com [64.233.162.204])
by rly-yc06.mail.aol.com (v113.6) with ESMTP id MAILRELAYINYC69-6ef453fd4276e;
Wed, 25 Oct 2006 17:16:23 -0400
Received: by nz-out-0102.google.com with SMTP id 16so197185nzp
for <%User_ID%@aim.com>; Wed, 25 Oct 2006 14:16:23 -0700 (PDT)
DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws;
s=beta; d=gmail.com;
h=received:from:organization:to:date:mime-version:subject:message-id:priority:x-mailer:content-type:content-transfer-encoding:content-description:sender;
b=AfSzSmLNTK19H96215tyqBl7XNnrkPupUvshfzWAw6v1w67qAxevLmL3mafkfAqcCRz2qpdfGgDrs03R 5mphIXO3IBLXDJRKTiC2yL+VTHwKZw5YubPH7Niluh0thtEIvY3s2p5oV3h/E3K0ILBR6tdgXaoyH+0cw3LAPwCjI4Y=
Received: by 10.65.54.5 with SMTP id g5mr1612182qbk;
Wed, 25 Oct 2006 14:16:22 -0700 (PDT)
Received: from gmail.com ( [69.106.38.180])
by mx.google.com with ESMTP id f18sm3562161qba.2006.10.25.14.16.19;
Wed, 25 Oct 2006 14:16:22 -0700 (PDT)
From: "NormanS" <%User_ID%@aosake.net>
Organization: Google Mail System
To: %User_ID%@aim.com
Date: Wed, 25 Oct 2006 14:16:04 -0700
MIME-Version: 1.0
Subject: [TEST] GMail servers.
Message-ID: <453F71A4.2856.67693E@%User_ID%.aosake.net>
Priority: normal
X-mailer: Pegasus Mail for Windows (4.41)
Content-type: text/plain; charset=US-ASCII
Content-transfer-encoding: 7BIT
Content-description: Mail message body
Sender: NormanS <%User_ID%@gmail.com>
X-AOL-IP: 64.233.162.204

Just to prove a point about GMail SMTP service.
Despite the "Return-Path:", and "Sender:" header lines, the recipient's client will only display the "From:" header line, and will open a composition window to the "From:" email address. This is not a GMail email address!

Yahoo! Mail Plus servers ('smtp.mail.yahoo.com'):
Return-Path: <%User_ID%@lycos.com>
Received: from rly-xn06.mx.aol.com (rly-xn06.mail.aol.com [172.20.83.119])
by air-xn04.mail.aol.com (v113.6) with ESMTP id MAILINXN42-75b454294f42c2;
Fri, 27 Oct 2006 19:23:40 -0400
Received: from smtp109.plus.mail.mud.yahoo.com (smtp109.plus.mail.mud.yahoo.com [68.142.206.242])
by rly-xn06.mx.aol.com (v113.6) with ESMTP id MAILRELAYINXN69-75b454294f42c2;
Fri, 27 Oct 2006 19:23:32 -0400
Received: (qmail 63347 invoked from network); 27 Oct 2006 23:23:32 -0000
Received: from unknown (HELO lycos.com) (hard2findanamenotused@68.127.139.241 with login)
by smtp109.plus.mail.mud.yahoo.com with SMTP; 27 Oct 2006 23:23:31 -0000
From: "NormanS" <%User_ID%@lycos.com>
Organization: Yahoo! Mail
To: %User_ID%@aim.com
Date: Fri, 27 Oct 2006 16:23:13 -0700
MIME-Version: 1.0
Subject: [TEST] Yahoo! Mail servers.
Message-ID: <45423271.8225.1BAC539@%User_ID%.lycos.com>
Priority: normal
X-mailer: Pegasus Mail for Windows (4.41)
Content-type: text/plain; charset=US-ASCII
Content-transfer-encoding: 7BIT
Content-description: Mail message body
X-AOL-IP: 68.142.206.242

Just to prove a point about Yahoo! Mail Plus servers.
There are few clues that this went through Yahoo! servers. No 'yahoo.com' email address. The "Organization" string can be changed in the client (I just don't feel like re-testing after changing it; there is a setting for in in Pegasus Mail). Note that Pegasus Mail even let me specify the "HELO" string (lycos.com), despite that this message did not even go through Lycos servers. BTW, Lycos Mail Plus works similar to Yahoo! Mail Plus; as an option for using SMTP servers other than Comcast. I do have a Yahoo! Mail Plus account, courtesy of AT&T HSI (sort of like Comcast and Giganews). I don't have a Lycos Mail Plus account.

The screen shots show what the recipient sees in the message list, and the reply composition window.

Bottom line, though, to get somewhat back on topic: Nobody should be using a residential ISP service for business purposes. You need to mail large quantities of messages on a regular basis? Your own domain, and mail hosting for that domain can be had for under $70 per year.

--
Norman
~Oh Lord, why have you come
~To Konnyu, with the Lion and the Drum


TraumaJunkie
Premium
join:2004-03-05
Knoxville, TN

I skimmed over most of the messages and did not see this so I apoogoze in advance if someone mentioned it. In a effort to reduce spam, Comcats (as does many other ISPs) only allows their SMTP servers to be used if you are connected through a Comcast IP address. If not, you will be blocked. So therefore, if the OP had a non-Comcast IP the SMTP would be blocked.
--
I'm not really sure what I am doing, but I'm doing it anyway!


NormanS
Premium,MVM
join:2001-02-14
San Jose, CA
kudos:4
Reviews:
·SONIC.NET
·Pacific Bell - SBC

said by TraumaJunkie:

I skimmed over most of the messages and did not see this so I apoogoze in advance if someone mentioned it.
Including skimming over my post with email headers showing email sent through a Comcast SMTP server...
In a effort to reduce spam, Comcats (as does many other ISPs) only allows their SMTP servers to be used if you are connected through a Comcast IP address. If not, you will be blocked. So therefore, if the OP had a non-Comcast IP the SMTP would be blocked.
That is not true. Aside from examining the headers of the message I posted earlier, fourth one (it shows access to 'smtp.comcast.net' from a 'pacbell.net' (AT&T Yahoo! HSI) IP address), check your Comcast site FAQ for configuring an email client to access 'smtp.comcast.com' from another network. You must configure your client to use SMTP AUTH when connecting from another network.

BTW, my ISP, which is AT&T Yahoo! HSI, like Comcast, does allow authenticated connection to their mail servers from other networks.
--
Norman
~Oh Lord, why have you come
~To Konnyu, with the Lion and the Drum


madylarian
The curmudgeonly
Premium
join:2002-01-03
Parkville, MD

In fact, here is the instruction for using Outlook Express while travelling (and not being connected via Comcast). There are similar instructions for Outlook and other email clients.

mady
--
Honi soit qui mal y pense


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