551 not our customer when forwarding mail outlook

On Sat, 20 Feb 2010 19:18:34 -0500
AlabasterDavid AlabasterDavid.46pjba@invalid
articulated:

Same thing here. Started this morning. Using Bellsouth.net as my
outgoing mail server. Use Outlook at home and auto download my emails
from Bellsouth.net and yahoo.com. But today, i can't forward or send
any email messages, only recieve. Getting the sam message you are.

You might try one of these links:

https://webauth.att.net/auth/webmail...BC22230650 62

http://localization.att.com/loc/cont...dex.jsp?cv=102

Perhaps you might find something useful there. In any case, the problem
is not Outlook, a rarity I admit, but rather with the downstream ISP.

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Using Bellsouth.net and having the same issue about last 48 hours.

"MLV0764" wrote:

I get returned mail with the error "551 not our customer" when trying to
forward mail. I can send new mail to the same contacts with no problem.

It's driving me nuts...551 not our customer. I've tried everything I can think of to fix it.

---
frmsrcurl: http://msgroups.net/microsoft.public...g-mail-outlook

Just got this message on an ATT chat;

I apologize but we are undergoing a system maintenance. Would you please try
to check your client email program later today and see if it will work then.
This maintenance is intended to improve the service we offer you and we
regret any inconvenience. For the mean time, we suggest that you access your
email account online or we can temporarily change your outgoing mail server
and see if this resolve the issue.

"hydrajor" wrote:


Fred Bailey;126145 Wrote:
I am havinfg the same problem in reply or forward.

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frmsrcurl: http://tinyurl.com/yck6mg8

We are on AT&T (Bellsouth). Also having the problem on both my
computer with XP and my wife's laptop with Vista when sending through
Outlook. Emails to other AT&T customers and certain other ISPs send with
no problem, but most emails get that same "551 not our customer"
message. When we send email directly through AT&T's webmail it appears
to send but does not show up in "Sent" file. Have not received any
replies yet to indicate recipients are getting the emails.


--
hydrajor
http://forums.slipstick.com

.

My original problem...

"Same problem here. Started yesterday, 4/19/10. Newly created e-mail go out but not fwd or reply. Is it an Outlook or ISP issue? Happens with both Outlook XP on an XP machime and Outlook 07 on a Vista machine. I use BellSouth, i.e. AT&T DSL."

... has now gotten worse not better. No outgoing mail what so ever. No fwd, no reply, not even new msgs. Comes back immediately with 551 not our customer. Unless of course I send a msg to another bellsouth.net address. Dead give-a-away as to where the problem lies.




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frmsrcurl: http://msgroups.net/microsoft.public...g-mail-outlook

On Sat, 20 Feb 2010 07:32:05 -0800, MLV0764 wrote:

I get returned mail with the error "551 not our customer" when trying to
forward mail. I can send new mail to the same contacts with no problem.

The commonality in this thread seems to be former Bellsouth customers. I
wonder if this forum thread will help?

http://www.dslreports.com/forum/r23833442-Services-Unable-to-send-email-via-mailbellsouthnet

FWIW, I am a former SBC customer who did migrate to the "SBC Yahoo! DSL
Service", now called, "at&t Yahoo! HSI", back in December, 2002, when it was
first rolled out. At the present, AT&T seems content to not apply much
effort to running their email service, or to bird dogging Yahoo! about
problems with their email service. I suspect that they believe email service
to be a net cost, no profit service. Probably time to either switch
providers (if you think a competitive provider in your area is better with
email; but most ISPs are not), or find an alternative email service provider
(which has the advantage of not tying you to one ISP).

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

I am having this problem on 3 different email accounts, only one of them is
bellsouth.net. I saw a previous note that this was not an Outlook problem. I
do not believe that. One email provider suggestedt his was a conflict
between a recent OS security patch and Outlook 2007.

"Robin" wrote:

Are you all using BELLSOUTH.NET ????????

"Robin" wrote:

I'm having a simular issue.
outlook 2002 will not allow me to send mail get error message 551 not our
customer
I am able to receive all e-mails from other hosts but I am not able to reply
or send new mail if they do not have the same e-mail provider.

Can I get help!!

"MLV0764" wrote:

I get returned mail with the error "551 not our customer" when trying to
forward mail. I can send new mail to the same contacts with no problem.

Update to my recent post. AFter pondering this, I now realize the
mail.bellsouth.net ismy outgoing mail server for all 3 accounts. Later in
this thread, I did see someone who contacted ATT/Bellsouth and got a 'we are
doing some maintenance. check it later to see if it resolves itself'
response. That sure looks like a 'we screwed up and we are fixing it' answer.

DDP

"Robin" wrote:

Are you all using BELLSOUTH.NET ????????

"Robin" wrote:

I'm having a simular issue.
outlook 2002 will not allow me to send mail get error message 551 not our
customer
I am able to receive all e-mails from other hosts but I am not able to reply
or send new mail if they do not have the same e-mail provider.

Can I get help!!

"MLV0764" wrote:

I get returned mail with the error "551 not our customer" when trying to
forward mail. I can send new mail to the same contacts with no problem.

It is a Bell South error. When they changed to Att some customers still had
bell south and some had att pop addresses. Their latest update last night
crunched things. Change your email settings to: Pop server in =
Pop.att.yahoo.com out= SMTP.att.yahoo.com Also uncheck lon on using
secure server if it was checked. On advanced tab change in and out port
numbers in= 995 out=465 Hope this helps. Call them at 8883212375 if this
doesn't fix it

"Carmel" wrote:

On Sat, 20 Feb 2010 19:18:34 -0500
AlabasterDavid AlabasterDavid.46pjba@invalid
articulated:

Same thing here. Started this morning. Using Bellsouth.net as my
outgoing mail server. Use Outlook at home and auto download my emails
from Bellsouth.net and yahoo.com. But today, i can't forward or send
any email messages, only recieve. Getting the sam message you are.

You might try one of these links:

https://webauth.att.net/auth/webmail...BC22230650 62

http://localization.att.com/loc/cont...dex.jsp?cv=102

Perhaps you might find something useful there. In any case, the problem
is not Outlook, a rarity I admit, but rather with the downstream ISP.

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.

On Sun, 21 Feb 2010 08:08:01 -0800
bobbiestaten
articulated:

It is a Bell South error. When they changed to Att some customers
still had bell south and some had att pop addresses. Their latest
update last night crunched things. Change your email settings to:
Pop server in = Pop.att.yahoo.com out= SMTP.att.yahoo.com Also
uncheck lon on using secure server if it was checked. On advanced
tab change in and out port numbers in= 995 out=465 Hope this
helps. Call them at 8883212375 if this doesn't fix it

Actually, both port 25 & 587 work equally as well.

$ telnet smtp.att.yahoo.com 25
Trying 66.196.96.87...
Connected to smtp.sbc.mail.fy4.b.yahoo.com.
Escape character is '^]'.
220 smtp102.sbc.mail.re3.yahoo.com ESMTP
^]
telnet quit
Connection closed.

$ telnet smtp.att.yahoo.com 587
Trying 76.13.12.104...
Connected to smtp.sbc.mail.fy4.b.yahoo.com.
Escape character is '^]'.
220 smtp103.sbc.mail.ac4.yahoo.com ESMTP
^]
telnet quit

Both are preferable over 465 which was never a standard and is
virtually unsupported. It is only kept on life support for users of
depreciated versions of Outlook. There is one caveat; port 25 may be
blocked by your ISP. If so, use 587 instead.

In addition, I was able to connect via port 110 for POP service;
however, port 995 failed. I am not sure why yet.

$ telnet pop.att.yahoo.com 110
Trying 68.142.229.14...
Connected to pop-sbc.mail.fy4.b.yahoo.com.
Escape character is '^]'.
+OK hello from popgate 2.45 on pop115.sbc.mail.re2.yahoo.com
capa
+OK CAPA list follows
EXPIRE NEVER
IMPLEMENTATION popgate 2.45
PIPELINING
RESP-CODES
TOP
UIDL
USER
..
quit
Connection closed by foreign host.

$ telnet pop.att.yahoo.com 995
Trying 68.142.229.14...
Connected to pop-sbc.mail.fy4.b.yahoo.com.
Escape character is '^]'.
capa
Connection closed by foreign host.

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