I am unable to send emails to Comcast.net. What can cause this?

A few weeks ago, Outlook stopped sending emails properly to Comcast.net. I
do not have trouble with any other email provider. I receive no error
messages and everything appears normal but the recipients do not receive my
email. I use Embarqmail as my ISP and am able to send emails to comcast when
I log on to my Embarqmail account online . What could possibly be causing
this?

Ed Wendling wrote:
A few weeks ago, Outlook stopped sending emails properly to
Comcast.net. I do not have trouble with any other email provider. I
receive no error messages and everything appears normal but the
recipients do not receive my email. I use Embarqmail as my ISP and
am able to send emails to comcast when I log on to my Embarqmail
account online . What could possibly be causing this?

Get a google mail account and see if emails from there get blocked.

Might be that Comcast have blacklisted an IP address block that includes
yours, or they might not like Embarqmail
--
John Blessing

http://www.LbeHelpdesk.com - Help Desk software
http://www.room-booking-software.com - Schedule rooms & equipment
bookings http://www.lbetoolbox.com - De-Duplicates MS Outlook
http://www.repeatmail.com - schedule mass individual emails

"Ed Wendling" wrote:

A few weeks ago, Outlook stopped sending emails properly to Comcast.net. I
do not have trouble with any other email provider. I receive no error
messages and everything appears normal but the recipients do not receive my
email. I use Embarqmail as my ISP and am able to send emails to comcast when
I log on to my Embarqmail account online . What could possibly be causing
this?

My problem seems to be tied to MS Outlook. When I use my wife's computer,
which is running Thunderbird, my emails go right thru. When I access
Embarqmail on the internet and write an email to a comcast recipient, they go
right thru. It is only when I write the email message in Outlook that they
are not getting thru.

"John Blessing" wrote:

Ed Wendling wrote:
A few weeks ago, Outlook stopped sending emails properly to
Comcast.net. I do not have trouble with any other email provider. I
receive no error messages and everything appears normal but the
recipients do not receive my email. I use Embarqmail as my ISP and
am able to send emails to comcast when I log on to my Embarqmail
account online . What could possibly be causing this?

Get a google mail account and see if emails from there get blocked.

Might be that Comcast have blacklisted an IP address block that includes
yours, or they might not like Embarqmail
--
John Blessing

http://www.LbeHelpdesk.com - Help Desk software
http://www.room-booking-software.com - Schedule rooms & equipment
bookings http://www.lbetoolbox.com - De-Duplicates MS Outlook
http://www.repeatmail.com - schedule mass individual emails


My problem seems to be tied to MS Outlook. When I use my wife's computer, which is running Thunderbird, my emails go right thru. When I access Embarqmail on the internet and write an email to a comcast recipient, they go right thru. It is only when I write the email message in Outlook that they are not getting thru.

On Mon, 11 Aug 2008 20:50:29 +0100, John Blessing wrote:

Ed Wendling wrote:

A few weeks ago, Outlook stopped sending emails properly to
Comcast.net. I do not have trouble with any other email provider. I
receive no error messages and everything appears normal but the
recipients do not receive my email. I use Embarqmail as my ISP and
am able to send emails to comcast when I log on to my Embarqmail
account online . What could possibly be causing this?

Get a google mail account and see if emails from there get blocked.

Might be that Comcast have blacklisted an IP address block that includes
yours, or they might not like Embarqmail

It is very unlikely that the poster's IP address is listed. It is much more
likely that the Embarqmail relay server IP address is listed. At this time,
Comcast, Embarq, and MSN all have 'nlpi015.prodigy.net', and
'nlpi029.prodigy.net' blocked, but none of the other 'nlpi0xx.prodigy.net'
mail servers that I can tell. Comcast blocks Embarq, Hotmail blocks Comcast,
and all three block AT&T. That is just the way email works, today, so long
as spammers can successfully hijack computers, for use as mail hosts, and
email accounts, for authenticating to ISP message submission servers.

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

On Mon, 11 Aug 2008 13:10:12 -0700, Ed Wendling wrote:

"Ed Wendling" wrote:

A few weeks ago, Outlook stopped sending emails properly to Comcast.net. I
do not have trouble with any other email provider. I receive no error
messages and everything appears normal but the recipients do not receive my
email. I use Embarqmail as my ISP and am able to send emails to comcast when
I log on to my Embarqmail account online . What could possibly be causing
this?

My problem seems to be tied to MS Outlook. When I use my wife's computer,
which is running Thunderbird, my emails go right thru. When I access
Embarqmail on the internet and write an email to a comcast recipient, they go
right thru. It is only when I write the email message in Outlook that they
are not getting thru.

There is nothing specific about Outlook, itself, that would be a problem.
OTOH, if you are attaching a signature with a URL in it, that could be a
problem.

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

"N. Miller" wrote:

On Mon, 11 Aug 2008 13:10:12 -0700, Ed Wendling wrote:

"Ed Wendling" wrote:

A few weeks ago, Outlook stopped sending emails properly to Comcast.net. I
do not have trouble with any other email provider. I receive no error
messages and everything appears normal but the recipients do not receive my
email. I use Embarqmail as my ISP and am able to send emails to comcast when
I log on to my Embarqmail account online . What could possibly be causing
this?

My problem seems to be tied to MS Outlook. When I use my wife's computer,
which is running Thunderbird, my emails go right thru. When I access
Embarqmail on the internet and write an email to a comcast recipient, they go
right thru. It is only when I write the email message in Outlook that they
are not getting thru.

There is nothing specific about Outlook, itself, that would be a problem.
OTOH, if you are attaching a signature with a URL in it, that could be a
problem.

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

I do use a signature with a URL in it and have for a long time. I will
remove that URL and see if that helps. Thanks for the tip.
What is even more ridiculous is that I can send successfully to Comcast if I
use Outlook Express - same computer, same settings and no problems.

"N. Miller" wrote:

On Mon, 11 Aug 2008 13:10:12 -0700, Ed Wendling wrote:

"Ed Wendling" wrote:

A few weeks ago, Outlook stopped sending emails properly to Comcast.net. I
do not have trouble with any other email provider. I receive no error
messages and everything appears normal but the recipients do not receive my
email. I use Embarqmail as my ISP and am able to send emails to comcast when
I log on to my Embarqmail account online . What could possibly be causing
this?

My problem seems to be tied to MS Outlook. When I use my wife's computer,
which is running Thunderbird, my emails go right thru. When I access
Embarqmail on the internet and write an email to a comcast recipient, they go
right thru. It is only when I write the email message in Outlook that they
are not getting thru.

There is nothing specific about Outlook, itself, that would be a problem.
OTOH, if you are attaching a signature with a URL in it, that could be a
problem.

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

Itried it without the signature but had the same results. Here is something
really bizza I opened Outlook Express and set up an email account exactly
as I have it set in MS Outlook and it works just fine. Do you think there is
any benefit in reinstalling MS Outlook? Perish the thought!

Ed Wendling wrote:

Itried it without the signature but had the same results. Here is
something really bizza I opened Outlook Express and set up an
email account exactly as I have it set in MS Outlook and it works
just fine. Do you think there is any benefit in reinstalling MS
Outlook? Perish the thought!

It is unlikely that a reinstallation would affect this issue.

What exactly happens to the messages? You said what doesn't happen, but the
absence of a symptom can't be used to diagnose a problem. You can't, for
example, tell your doctor your knee doesn't hurt if you wish him or her to
diagnose a pain in your elbow. Exactly what are you doing? when you click
Send, does the message go to the Outbox? Do you get any errors (and if so,
exactly what do they say)? When you click Send/Receive, do the messages
move to the Sent Items folder? Do you get and non-delivery reports? What
version of Outlook? Since you mention Comcast, can we assume your account
is a POP/SMTP account? Are you specifying a Comcast server for the incoming
and outgoing servers? How about for the domain of the mail address?
--
Brian Tillman [MVP-Outlook]

"Brian Tillman" wrote:

Ed Wendling wrote:

Itried it without the signature but had the same results. Here is
something really bizza I opened Outlook Express and set up an
email account exactly as I have it set in MS Outlook and it works
just fine. Do you think there is any benefit in reinstalling MS
Outlook? Perish the thought!



It is unlikely that a reinstallation would affect this issue.

What exactly happens to the messages? You said what doesn't happen, but the
absence of a symptom can't be used to diagnose a problem. You can't, for
example, tell your doctor your knee doesn't hurt if you wish him or her to
diagnose a pain in your elbow. Exactly what are you doing? when you click
Send, does the message go to the Outbox? Do you get any errors (and if so,
exactly what do they say)? When you click Send/Receive, do the messages
move to the Sent Items folder? Do you get and non-delivery reports? What
version of Outlook? Since you mention Comcast, can we assume your account
is a POP/SMTP account? Are you specifying a Comcast server for the incoming
and outgoing servers? How about for the domain of the mail address?
--
Brian Tillman [MVP-Outlook]


I'll take them one at a time but understand I am 40 yr computer professional
and have been using MS Office and Outlook for about 20 years.
The problem is that there is no apparent problem. It is of course POP/SMTP.
However, I am not a Comcast user so my servers , in and out, are Embarqmail
and have been for at least 3 years. My problem is in sending to Comcast
users and it only recently started - last 4 or 5 weeks. I have no problem in
receiving from them. The problem I have in answering many of your questions
is that my problem is symptomless. Outbound goes thru the Outbox and appears
to be sent. It appears in my sent mail folder. Zero failure or error
messages of any kind. It just does not arrive at its destination and is not
sitting in my Embarqmail Outbox either. To simplify my response I just
installed Thunderbird on my computer and set up the email accounts with the
same exact settings I have in MS Outlook and the mail goes thru just as it
should. I'm running MS Office/Outlook 2003 home edition and have been ever
since it hit the market. When I send emails to a distribution list, people
on that list who have comcast email addresses do not receive the emails -
non-comcast users receive it just fine. I know this because I have been
verifying with them both via email and telephone in trying to diagnose what
is going on. The problem is not limited to distribution lists however.

I wish I could be more helpful but as you suggest I am not telling you my
knee is fine when in fact it is my elbow hurts. There are only two known
symptoms and they are 1) it is only comcast users who are affected, 2) mail
does not arrive at it's destination for these users. One last thing, when I
receive an email from a comcast user and do a reply, it is not received
either so it is not that I am typing in a bogus email address.