RE: SMTP sending failure, connection is dropped by remote host

From: v-chayan@xxxxxxxxxxxxxxxxxxxx ("Charles Yang [MSFT]")
Date: Mon, 21 Nov 2005 01:56:04 GMT

Hi,

Thanks for updates.

>From your description, it seems you can not your SBS to send emails but
receive emails is correctly. And if you use SMTP command to send emails it
did correctly.

The issue might not relate to authentication issue, we need to see if there
is any other process listen on the same 25 ports.

Please follow my suggestion below:

On the SBS server, click Start, click Run, type "cmd" and click OK. At the
command prompt, run "netstat -ano | find ":25"" (without the quotation
marks). You should see a line similar to the following:

TCP 0.0.0.0:25 0.0.0.0:0 LISTENING 1900

Here the "0.0.0.0:25" states that the process is listening on all
unassigned IP addresses and port 25. 1900 is the ID of the process.

You can also check this in Exchange System Manager -> Servers -> Your
server -> Protocols -> SMTP -> Default SMTP Virtual Server -> General ->
Advanced.

We suggest you also rerun CEICW, it will make sure that the emails is set
correctly, please also make sure that the certificate is input correct as
your FQDN name on internet.

825763 How to configure Internet access in Windows Small Business Server
2003
http://support.microsoft.com/?id=825763

Please also check if the emails is pending to the mail queue for outbound.
You can also enable message tracking to track the message when it send to
internet and check where it is stop to send then we can find the root cause
of the issue.

Thanks for your understanding, I will be here waiting for your updates.

Best regards,

Charles Yang (MSFT)

Microsoft CSS Online Newsgroup Support

Get Secure! - www.microsoft.com/security

======================================================
This newsgroup only focuses on SBS technical issues. If you have issues
regarding other Microsoft products, you'd better post in the corresponding
newsgroups so that they can be resolved in an efficient and timely manner.
You can locate the newsgroup here:
http://www.microsoft.com/communities/newsgroups/en-us/default.aspx

When opening a new thread via the web interface, we recommend you check the
"Notify me of replies" box to receive e-mail notifications when there are
any updates in your thread. When responding to posts via your newsreader,
please "Reply to Group" so that others may learn and benefit from your
issue.

Microsoft engineers can only focus on one issue per thread. Although we
provide other information for your reference, we recommend you post
different incidents in different threads to keep the thread clean. In doing
so, it will ensure your issues are resolved in a timely manner.

For urgent issues, you may want to contact Microsoft CSS directly. Please
check http://support.microsoft.com for regional support phone numbers.

Any input or comments in this thread are highly appreciated.
======================================================
This posting is provided "AS IS" with no warranties, and confers no rights.

=====================================================
When responding to posts, please "Reply to Group" via your newsreader so
that others may learn and benefit from your issue.
=====================================================

This posting is provided "AS IS" with no warranties, and confers no rights.

--------------------
| Thread-Topic: SMTP sending failure, connection is dropped by remote host
| thread-index: AcXt4Cif3N7FPR9CSDWDAClrmoFQ7Q==
| X-WBNR-Posting-Host: 82.40.177.224
| From: "=?Utf-8?B?UmV0ZXA=?=" <Retep@xxxxxxxxxxxxxxxxxxxxxxxxx>
| References: <3A0947B1-FC9C-4911-AEB1-6069AC11590E@xxxxxxxxxxxxx>
<Kw3ym#P5FHA.832@xxxxxxxxxxxxxxxxxxxxx>
<921FDD8F-DD12-4CC8-838F-11D14E29EFA2@xxxxxxxxxxxxx>
<JytQNhZ5FHA.3076@xxxxxxxxxxxxxxxxxxxxx>
| Subject: RE: SMTP sending failure, connection is dropped by remote host
| Date: Sun, 20 Nov 2005 06:39:06 -0800
| Lines: 328
| Message-ID: <587ED2A6-52D5-4C6F-8E0E-BDF9117DA785@xxxxxxxxxxxxx>
| MIME-Version: 1.0
| Content-Type: text/plain;
| charset="Utf-8"
| Content-Transfer-Encoding: 7bit
| X-Newsreader: Microsoft CDO for Windows 2000
| Content-Class: urn:content-classes:message
| Importance: normal
| Priority: normal
| X-MimeOLE: Produced By Microsoft MimeOLE V6.00.3790.0
| Newsgroups: microsoft.public.windows.server.sbs
| NNTP-Posting-Host: TK2MSFTNGXA03.phx.gbl 10.40.2.250
| Path: TK2MSFTNGXA02.phx.gbl!TK2MSFTNGXA03.phx.gbl
| Xref: TK2MSFTNGXA02.phx.gbl microsoft.public.windows.server.sbs:223927
| X-Tomcat-NG: microsoft.public.windows.server.sbs
|
| I have done these things Charles, and consistently recieve the remote
host
| dropped the connection error.
|
| The routing group errors relate to the default routing group which
exchange
| sets up in any event. As far as I can tell it is jsut saying the the
| connection was dropped! Not very helpful.
|
| The MX records are correct, to prove it i can reconnect the old/existing
| server which sends and recieves OK.
|
| Telnet connects and sends OK.
|
| SMTPDIAG.exe runs OK, i have the results to prove it, youcan see them if
you
| wish.
|
| I have now doen a rebuild of the server applying NO service packs this
time,
| and still have the same result!
|
| No AV, no ISA, no SPs, recieving email OK (very quickly in fact), changed
| the nic to the internet, stood on my head, but al to no avail!
|
| Where to go from here???
|
| regards
| Peter (now nearly bald!).
|
| ""Charles Yang [MSFT]"" wrote:
|
| > HI Peter,
| >
| > Thanks for your updates.
| >
| > Can I assume that you have two SBS server, an old one and a new one?
Now
| > the old one work perfectly without any problem, but when you use the
new
| > one the problem will exist when sending outbound emails?
| >
| > I still suggest you refer to the KB article I referred to double check
your
| > Exchange setting, it is very important for your issue. Also you need to
| > contact with your ISP to see your MX records is right point to your SBS
| > server and the authentication is correctly configured, as we know we
have
| > many issue which is related to authentication issue.
| >
| > Please also kindly follow the steps below to see if you can send emails
via
| > command line.
| >
| > 1. Click Start, click Run, type telnet, and then click OK.
| > 2. At the Microsoft Telnet command prompt, type open server_name 25,
and
| > then press ENTER.
| > 3. To verify that you are successfully connected to the SMTP Mail
Service,
| > type helo domain.com, and then press ENTER.
| > 4. Type mail from: <remote user@remote domain.com>, and then press
ENTER.
| > 5. Type rcpt to: <User@xxxxxxxxxxxxxx>, and then press ENTER.
| > 6. Type "quit" (without the quotation marks), and then press ENTER two
| > times to close the connection to the server and leave the Telnet
session
| > running.
| >
| > As I know, we do not need to use routing group by default. So we may
need
| > to focus on the outbound email issue.
| >
| > Thanks again for your effort here.
| >
| >
| >
| > Best regards,
| >
| > Charles Yang (MSFT)
| >
| > Microsoft CSS Online Newsgroup Support
| >
| > Get Secure! - www.microsoft.com/security
| >
| > ======================================================
| > This newsgroup only focuses on SBS technical issues. If you have issues
| > regarding other Microsoft products, you'd better post in the
corresponding
| > newsgroups so that they can be resolved in an efficient and timely
manner.
| > You can locate the newsgroup here:
| > http://www.microsoft.com/communities/newsgroups/en-us/default.aspx
| >
| > When opening a new thread via the web interface, we recommend you check
the
| > "Notify me of replies" box to receive e-mail notifications when there
are
| > any updates in your thread. When responding to posts via your
newsreader,
| > please "Reply to Group" so that others may learn and benefit from your
| > issue.
| >
| > Microsoft engineers can only focus on one issue per thread. Although we
| > provide other information for your reference, we recommend you post
| > different incidents in different threads to keep the thread clean. In
doing
| > so, it will ensure your issues are resolved in a timely manner.
| >
| > For urgent issues, you may want to contact Microsoft CSS directly.
Please
| > check http://support.microsoft.com for regional support phone numbers.
| >
| > Any input or comments in this thread are highly appreciated.
| > ======================================================
| > This posting is provided "AS IS" with no warranties, and confers no
rights.
| >
| >
| > =====================================================
| > When responding to posts, please "Reply to Group" via your newsreader
so
| > that others may learn and benefit from your issue.
| > =====================================================
| >
| > This posting is provided "AS IS" with no warranties, and confers no
rights.
| >
| > --------------------
| > | Thread-Topic: SMTP sending failure, connection is dropped by remote
host
| > | thread-index: AcXlUhnsMVe2+ivxTkSQimd0M8boyQ==
| > | X-WBNR-Posting-Host: 82.40.177.224
| > | From: "=?Utf-8?B?UmV0ZXA=?=" <Retep@xxxxxxxxxxxxxxxxxxxxxxxxx>
| > | References: <3A0947B1-FC9C-4911-AEB1-6069AC11590E@xxxxxxxxxxxxx>
| > <Kw3ym#P5FHA.832@xxxxxxxxxxxxxxxxxxxxx>
| > | Subject: RE: SMTP sending failure, connection is dropped by remote
host
| > | Date: Wed, 9 Nov 2005 09:22:03 -0800
| > | Lines: 244
| > | Message-ID: <921FDD8F-DD12-4CC8-838F-11D14E29EFA2@xxxxxxxxxxxxx>
| > | MIME-Version: 1.0
| > | Content-Type: text/plain;
| > | charset="Utf-8"
| > | Content-Transfer-Encoding: 7bit
| > | X-Newsreader: Microsoft CDO for Windows 2000
| > | Content-Class: urn:content-classes:message
| > | Importance: normal
| > | Priority: normal
| > | X-MimeOLE: Produced By Microsoft MimeOLE V6.00.3790.0
| > | Newsgroups: microsoft.public.windows.server.sbs
| > | NNTP-Posting-Host: TK2MSFTNGXA03.phx.gbl 10.40.2.250
| > | Path: TK2MSFTNGXA02.phx.gbl!TK2MSFTNGP08.phx.gbl!TK2MSFTNGXA03.phx.gbl
| > | Xref: TK2MSFTNGXA02.phx.gbl microsoft.public.windows.server.sbs:220509
| > | X-Tomcat-NG: microsoft.public.windows.server.sbs
| > |
| > | Hi Charles,
| > | Thanks for your consideraions, However I think that maybe i did not
| > describe
| > | the position sufficiently.
| > | We have two servers.
| > | Old one and new one, configured exactly the same except name and new
| > server
| > | has raid 1 on system, and 5 on data.
| > | I have not reinstalled ISA only have firewall on new server running.
| > | Old one will be rebuilt after new one is production.
| > | IP address same.
| > | Router same.
| > | Smarthost same.
| > | Internt access same.
| > | (Not on same newtwork at same time for obvious reasons).
| > | Exchange and domain configured same.
| > |
| > | Old one works in sendiong and recieving.
| > | New one will only recieve consistently, and will drop connection
after 10
| > to
| > | 30 seconds after connecting to smarthost.
| > | ISP collectsa mail and delivers direct to exchange.
| > | No domain naming problems or contentions.
| > | I have rerun the wizzard to connect to internet, also I have
resinstalled
| > | exchange, ditto IIS, and DNS. no change.
| > | Browsing is fine from within network and server.
| > | We can telnet into the exchange server OK.
| > | We can Telnet to smarthost OK
| > | SMTPDIAG.exe works just fine, no problems.
| > |
| > | I turned on logging and came up with these routing group messages,
| > linkstate
| > | messages etc. We dont use nor have I configured routing groiups (no
need,
| > | smarthost is fine), this scenario has been working well for many
years.
| > |
| > | I have removed ALL anti-virus from server (new) - until this is fixed
of
| > | course!
| > | I have uninstalled ISA 2004, and left ONLY the firewall running (we
have
| > | external firewall configured OK and runnning well for hte existing
server
| > | (when the new one isnt on the network).
| > | I have stopped all third party software (Veritas, vertical market
stuff
| > | etc..).
| > | I have NOT reapplied all service packs after reinstalling exchange
IIS
| > etc.
| > | this is why I'm thinking of a rebuild (would prefer as it takes
soooooo
| > long,
| > | and I'm getting older by the minute).
| > |
| > | I have these Routing Group messages, also some re link state
connectors
| > | being up then down!
| > |
| > | I cannot see any routing group, its' not there...so what to do?
| > |
| > | Are these messages normal, I havnt seen them before on any
installation I
| > | have done. Could the wizzard have created something which I cannot
see?
| > |
| > | hope this is clearer now, still stuck in limbo land, really need to
get
| > this
| > | server running to turn off the old one as it's creaking is keeping me
| > awake
| > | at nights!
| > |
| > | best regards
| > | Peter
| > |
| > | ""Charles Yang [MSFT]"" wrote:
| > |
| > | > HI Peter,
| > | >
| > | > Welcome to SBS newsgroup.
| > | >
| > | > Issue description:
| > | > ============
| > | >
| > | > I understand that your Exchange SMTP server connection will drop to
| > send
| > | > outbound email short time after booting.
| > | >
| > | > Analyzing and suggestion:
| > | > ==============
| > | >
| > | > Before we go any further for troubleshooting this issue, please
kindly
| > | > rerun CEICW to make sure that Exchange server is configured
correctly,
| > from
| > | > your description, it seem you are using smarthost on ISP to relay
your
| > | > internet emails. So please make sure that you input all the setting
| > | > correctly. You can refer to the KB article below:
| > | >
| > | > 825763 How to configure Internet access in Windows Small Business
| > Server
| > | > 2003
| > | > http://support.microsoft.com/?id=825763
| > | >
| > | > After running the wizard, we need to focus on the Exchange
transport
| > issue,
| > | > it seems your outbound email on ISP smarthost need some special
| > | > configuration, in order to narrow down the issue more clearly,
please
| > refer
| > | > to following KB article for more information:
| > | >
| > | > 827601 Cannot send external mail when your smart host server is
| > different
| > | > from
| > | > http://support.microsoft.com/?id=827601
| > | >
| > | > Please kindly go through the steps in the KB article above, it
should
| > be
| > | > helpful to your issue.
| > | >
| > | > Please also make sure that if you have router installed on your SBS
| > domain,
| > | > you need also open port 25 on the router.
| > | >
| > | > For the exchange error, we found it should not relate with outbound
| > emails.
| > | > We can first focus on the outbound email issue.
| > | >
| > | > Thanks for your time and effort on this issue, please feel free to
go
| > | > through my suggestion and post back your results. I am glad to be
of
| > | > further assistance.
| > | >
| > | >
| > | >
| > | > Best regards,
| > | >
| > | > Charles Yang (MSFT)
| > | >
| > | > Microsoft CSS Online Newsgroup Support
| > | >
| > | > Get Secure! - www.microsoft.com/security
| > | >
| > | > ======================================================
| > | > This newsgroup only focuses on SBS technical issues. If you have
issues
| > | > regarding other Microsoft products, you'd better post in the
| > corresponding
| > | > newsgroups so that they can be resolved in an efficient and timely
| > manner.
| > | > You can locate the newsgroup here:
| > | > http://www.microsoft.com/communities/newsgroups/en-us/default.aspx
| > | >
| > | > When opening a new thread via the web interface, we recommend you
check
| > the
| > | > "Notify me of replies" box to receive e-mail notifications when
there
| > are
| > | > any updates in your thread. When responding to posts via your
| > newsreader,
| > | > please "Reply to Group" so that others may learn and benefit from
your
| > | > issue.
| > | >
| > | > Microsoft engineers can only focus on one issue per thread.
Although we
| > | > provide other information for your reference, we recommend you post
| > | > different incidents in different threads to keep the thread clean.
In
| > doing
| > | > so, it will ensure your issues are resolved in a timely manner.
| > | >
| > | > For urgent issues, you may want to contact Microsoft CSS directly.
| > Please
| > | > check http://support.microsoft.com for regional support phone
numbers.
| > | >
| > | > Any input or comments in this thread are highly appreciated.
| > | > ======================================================
| > | > This posting is provided "AS IS" with no warranties, and confers no
| > rights.
| > | >
| > | >
| > | > =====================================================
| > | > When responding to posts, please "Reply to Group" via your
newsreader
| > so
| > | > that others may learn and benefit from your issue.
| > | > =====================================================
| > | >
| > | > This posting is provided "AS IS" with no warranties, and confers no
| > rights.
| > | >
| > | > --------------------
| > | > | Thread-Topic: SMTP sending failure, connection is dropped by
remote
| > host
| > | > | thread-index: AcXkiX4XMnUyJCoNSvGAAgjU6P4zVQ==
| > | > | X-WBNR-Posting-Host: 82.40.177.224
| > | > | From: "=?Utf-8?B?UmV0ZXA=?=" <Retep@xxxxxxxxxxxxxxxxxxxxxxxxx>
| > | > | Subject: SMTP sending failure, connection is dropped by remote
host
| > | > | Date: Tue, 8 Nov 2005 09:26:02 -0800
| > | > | Lines: 55
| > | > | Message-ID: <3A0947B1-FC9C-4911-AEB1-6069AC11590E@xxxxxxxxxxxxx>
| > | > | MIME-Version: 1.0
| > | > | Content-Type: text/plain;
| > | > | charset="Utf-8"
| > | > | Content-Transfer-Encoding: 7bit
| > | > | X-Newsreader: Microsoft CDO for Windows 2000
| > | > | Content-Class: urn:content-classes:message
| > | > | Importance: normal
| > | > | Priority: normal
| > | > | X-MimeOLE: Produced By Microsoft MimeOLE V6.00.3790.0
| > | > | Newsgroups: microsoft.public.windows.server.sbs
| > | > | NNTP-Posting-Host: TK2MSFTNGXA03.phx.gbl 10.40.2.250
| > | > | Path:
TK2MSFTNGXA01.phx.gbl!TK2MSFTNGP08.phx.gbl!TK2MSFTNGXA03.phx.gbl
| > | > | Xref: TK2MSFTNGXA01.phx.gbl
microsoft.public.windows.server.sbs:168662
| > | > | X-Tomcat-NG: microsoft.public.windows.server.sbs
|

.

Follow-Ups:
- RE: SMTP sending failure, connection is dropped by remote host
  - From: Retep

References:
- RE: SMTP sending failure, connection is dropped by remote host
  - From: "Charles Yang [MSFT]"
- RE: SMTP sending failure, connection is dropped by remote host
  - From: Retep

Prev by Date: Re: password retreival from installation?
Next by Date: sharepoint - sharing directories
Previous by thread: RE: SMTP sending failure, connection is dropped by remote host
Next by thread: RE: SMTP sending failure, connection is dropped by remote host
Index(es):
- Date
- Thread

Relevant Pages

Re: RWW Timing
... If you have installed ISA, ... Expand the server node and highlight ''Monitoring''. ... In the following website you can find many useful resources related to SBS ... Microsoft CSS Online Newsgroup Support ...
(microsoft.public.windows.server.sbs)
Re: R2 w/ISA User type account cannot use my companys internal website
... Alerts\Core Server Alerts ... Microsoft CSS Online Newsgroup Support ... And our product group is still reviewing the impact of the upgrade SBS ...
(microsoft.public.windows.server.sbs)
RE: Fax monitor incoming + outgoing calls?
... Perform clean boot on the SBS server. ... Uninstall and reinstall the windows fax service from Add/Remove ... Uninstall and reinstall the SBS fax services from Add/Remove ... Microsoft CSS Online Newsgroup Support ...
(microsoft.public.windows.server.sbs)
Re: Active X issue
... the client workstations and SBS server will not sync successfully. ... we must first make sure that the Time service on the SBS ... so that the client workstation could synchronize ... Microsoft CSS Online Newsgroup Support ...
(microsoft.public.windows.server.sbs)
Re: Some Questions
... remote pop3 which is hosted by Burst Data in Philadelphia. ... server from an outside connection. ... Logon to one of the client workstations in the SBS network. ... = e = Restart the Microsoft Connector for POP3 Mailboxes. ...
(microsoft.public.windows.server.sbs)