Prev: SBS 2008 removing self Signed SSL Certificate
Next: Exchange 2007 and Isolating multiple companies
From: MazharWaheed on 13 Jun 2010 01:43

Dear

I am facing a problem three days back whle sending mails from my SBS
exchange 2003. for the last 2 yeasrs it was working very fine but
certainly the problem occurs. My exchange server is relaying mails on
Host. i have contacted the ISP for the problem they said problem is at
your end. I have tried alot to do but cant fugure it. Some one help me
out the message i recieve is below. The errors come for every domain.
When i use pop3 directly from outlook it work properly but exchange is
giving problem

*"Your message did not reach some or all of the intended recipients.

Subject: zebra
Sent: 6/12/2010 5:17 PM

The following recipient(s) could not be reached:

baiqrary(a)hotmail.com on 6/12/2010 5:17 PM
There was a SMTP communication problem with the recipient's email
server. Please contact your system administrator.
<sigsme.com #5.5.0 smtp;550 <baiqrary(a)hotmail.com>, Recipient unknown>
"*


--
MazharWaheed
------------------------------------------------------------------------
MazharWaheed's Profile: http://forums.techarena.in/members/231724.htm
View this thread: http://forums.techarena.in/small-business-server/1345917.htm

http://forums.techarena.in

From: Larry Struckmeyer[SBS-MVP] on 13 Jun 2010 07:20
Hi:

It is possible this was just a temporary glitch in the hotmail system, or
that the user name is not quite correct, however:

Is sigsme.com your email domain?

If so, you may have two issues with your mail server:

use mxtoolbox.com or dnsstuff.com to check. The two I found were a spam
blacklist and your mail server slow to respond, either of which could cause
mail to be rejected by the "big" isps. Or the little ones, for that matter.


-
Larry

Please post the resolution to your
issue so others may benefit

-
Get Your SBS Health Check at
www.sbsbpa.com


From: MazharWaheed on 13 Jun 2010 15:30

Thanks for your reply My Domain name is "sigsme.com" and this is
happening with the hotmail it is happening with all domains on which i
am sending mails through exchange. When i use the pop3 it works fine but
when i use the exchange account to send email it bounce backs. as i have
told that my exchange dont have Static IP i am relaying on Host server.
So do suggest that i run those tools which have given to me or its
something other.


--
MazharWaheed
------------------------------------------------------------------------
MazharWaheed's Profile: http://forums.techarena.in/members/231724.htm
View this thread: http://forums.techarena.in/small-business-server/1345917.htm

http://forums.techarena.in

From: Larry Struckmeyer[SBS-MVP] on 13 Jun 2010 16:02
Just to be clear:

You cannot *send* mail with POP3. POP is a retreiving system.

You can send mail with smtp, either directly from your exchange server or
through a smart host.

If you are sending directly from your exchange server, you would have checked
"use DNS" when running the email setup wizard. If using a smart host, you
would have checked "send using a smart host" and given the credentials for
your ISP's (or some other) smart host.

If using a smart host, and mail is still being rejected, you need to discuss
it with your smart host support.

However, your mail server has the two issues I pointed out, and you should
run the tools, if for no better reason than to be prepared to discuss your
problem with your ISP/smart host.

I cannot telnet to your mail server "mail.sigsme.com" on port 25 with either
the ip address returned by ping, or by name. It simply times out. Perhaps
your server is not listening, or perhaps your edge device has not forwarded
port 25 to the ip address of your mail server?


-
Larry
-Please post the resolution to your issue so others may benefit
-Get Your SBS Health Check at www.sbsbpa.com


From: "Robbin Meng [MSFT]" on 14 Jun 2010 03:06

Hi Matt,

Thanks for your post and others' input.

Error 550 is a generic protocol error or an SMTP error causes this NDR. The remote SMTP server responds to a sending server's identifying EHLO with a 500-level error. The
sending system will then terminate the connection and deliver an NDR indicating that the remote SMTP server cannot handle the protocol. For example, if a Microsoft Hotmail?
e-mail account is no longer active, a 550 SMTP error will occur.

I am not sure what ISP you are using, to reset the SMTP virtual server configuration, it can be achieved by running the CEICW wizard, you can tell the CEICW not to modify the first
couple of items, only Exchange, and select the option to 'forward mail to this server', specifying the SmartHost mail server. Then restart server and check the issue again.

Meanwhile, you can follow below TechNet article to telnet the SmartHost server IP by 25 port and see if it makes you through.

How to Use Telnet to Test SMTP Communication
http://technet.microsoft.com/en-us/library/bb123686.aspx

If the SmartHost server works as expected but issue persists, please enable SMTP logging and view the SMTP Log (or a Netmon trace) to see why the remote SMTP server
rejects the protocol request.

How to enable SMTP log
===================
First, enable SMTP log on your Default SMTP Virtual Server on the sender's server.

a. Please open Exchange System Manager.
b. Right click on "Default SMTP Virtual Server" and click Properties.
c. On the General tab, please check the option "Enable logging".
d. Select W3C Extended Log File Format from the list below.
e. Click the Properties button. In the General Properties tab, please
confirm the following settings:
- Check the option Daily
- Check the option "Use local time for file naming and rollover"
- Confirm the setting for "Log file directory" to be
"C:\WINNT\System32\LogFiles"
- Check ALL the logging options on the Advanced tab.

Second, reproduce the issue.

Third, check the SMTP log on both side to if there are more clues, e.g. at which session and for what reason it dropped the SMTP connection. (SMTP log file under C:\WINNT
\System32\LogFiles\SMTPSVC#" (# is a number. The number for the Default SMTP Virtual Server is 1).

For detailed information about how to enable and track mail flow information in SMTP log, please refer to the article:

Logging the SMTP Service
<http://www.msexchange.org/tutorials/Logging_the_SMTP_Service.html>

More information:

Troubleshooting Non-Delivery Report Messages
http://technet.microsoft.com/en-us/library/bb124840%28EXCHG.65%29.aspx

SBS 2003 NDRs
http://www.microsoft.com/communities/newsgroups/en-us/default.aspx?&dg=microsoft.public.windows.server.sbs&p=1&tid=8a562b1c-066f-4f5e-ac52-8bcd047ca8c0

Hope this helps.


Sincerely,
Robbin Meng
Microsoft Online Newsgroup Support
==================================================================
This posting is provided "AS IS" with no warranties, and confers no rights.
==================================================================



 |  Next  |  Last
Pages: 1 2
Prev: SBS 2008 removing self Signed SSL Certificate
Next: Exchange 2007 and Isolating multiple companies