Re: SBS 2003 Exchange not getting external e-mail

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HI Ron,

Thanks for updates.

Let me clarify the issue more clearly, if you could not telnet the MX
record of your SBS server on the port 25, it might be caused by the router
did not forward the package from 25 to the SBS NIC.

As you can telnet the SBS external NIC on the port 25, we can see that the
port 25 is opened correctly on SBS server side, you need to configure your
router to forward the port 25 from WAN IP to the SBS server IP, not sure
why you get a 10.x.x.x IP on the WAN side, do you have a public IP for your
SBS server? You can telnet the public IP for the port 25 from internet to
see if you can reproduce the issue.

It should be a router side issue. Please also contact hardware vendor to
see if they can help you on the router side. Thanks for your effort here.



Best regards,

Charles Yang (MSFT)

Microsoft CSS Online Newsgroup Support

Get Secure! - www.microsoft.com/security

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

--------------------
| Thread-Topic: SBS 2003 Exchange not getting external e-mail
| thread-index: AcYLx58/U2UcyYnUTLOoU8pbRkOyUA==
| X-WBNR-Posting-Host: 212.18.242.162
| From: "=?Utf-8?B?Sm9obg==?=" <John@xxxxxxxxxxxxxxxxxxxxxxxxx>
| References: <O12m1tvCGHA.2036@xxxxxxxxxxxxxxxxxxxx>
<#35spqwCGHA.3528@xxxxxxxxxxxxxxxxxxxx>
<YJ7mSk1CGHA.3764@xxxxxxxxxxxxxxxxxxxxx>
<#G3Kwo6CGHA.4080@xxxxxxxxxxxxxxxxxxxx>
<O2jwOv6CGHA.2664@xxxxxxxxxxxxxxxxxxxx>
| Subject: Re: SBS 2003 Exchange not getting external e-mail
| Date: Wed, 28 Dec 2005 07:59:02 -0800
| Lines: 244
| Message-ID: <EE9931FE-2230-40CD-B947-A79E291B1260@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:232774
| X-Tomcat-NG: microsoft.public.windows.server.sbs
|
| Ron
|
| 2 things pop up in my mind.
|
| 1. Are you sure you are port forwarding to the INTERNAL address of your
SBS
| serve?
| Rememebr that packets should hit the External address of your firewall on
| port 25 (assuming you dont have a NAT for your SBS server) and then be
| forwarded to the internal address of your SBS server.
|
| 2. I dont see any MX records for your domain in the DNS info you posted.
you
| should have an MX record for the root of your domain (ie. same as
parent)
| pointing to the A record that has the external IP address of your
firewall
| associated with it (again assuming you dont have the SBS server NATed out
to
| another external address)
|
|
| "Ron Bunch" wrote:
|
| > What entries do I need in DNS?
| > for domain.local on the SBS 03 box I only have this one record for the
WAN
| > side
| > (same as parent folder) Start of Authority (SOA) [760],
| > server01.domain.local.,.....
| > (same as parent folder) Name Server (NS)
| > server01.domain.local
| > (same as parent folder) Host (A)
| > 10.0.0.2
| > (same as parent folder) Host (A)
| > 192.168.16.2
| > And plenty of enties for the LAN side
| >
| > Yes I did change the domain name in the examples.
| >
| > Ron Bunch
| > "Ron Bunch" <ronbunch@xxxxxxxxxxxxxxxxxx> wrote in message
| > news:%23G3Kwo6CGHA.4080@xxxxxxxxxxxxxxxxxxxxxxx
| > > Thanks for responding.
| > >
| > > See notes below.
| > >
| > >
| > > ""Charles Yang [MSFT]"" <v-chayan@xxxxxxxxxxxxxxxxxxxx> wrote in
message
| > > news:YJ7mSk1CGHA.3764@xxxxxxxxxxxxxxxxxxxxxxxx
| > >> HI Ron,
| > >>
| > >> Welcome to SBS newsgroup.
| > >>
| > >> Issue description:
| > >> ===========
| > >>
| > >> If I understand correct, you encountered problem when you receive
| > >> outbound
| > >> emails.
| > >>
| > >> Analyzing and suggestion:
| > >> ===========
| > >>
| > >> Before we go any further, I would like to confirm that you have a
valid
| > >> MX
| > >> records on the ISP or have a FQDN on the internet.
| > >>
| > >> Here I would like to give you some suggestion, please strict follow
it to
| > >> perform some tests:
| > >>
| > >> 1. Please rerun CEICW to make sure that you have configured your
| > >> smarthost
| > >> or DNS correctly, please clarify how you configure your Exchange
server
| > >> to
| > >> send and receive email using your OWN DNS or relay via ISP smarthost?
| > > I reran CEICWizard. I can send Internal & external e-mail. I'm using
the
| > > ISP smarthost.
| > >
| > >> 2. You can try to telnet your Exchange FQDN from a remote client
computer
| > >> to see if you can connect to the Exchange server. telnet FQDN:25.
Please
| > >> note that the public IP should not be the 10.0.0.2, so if you want to
| > >> connect to the Exchange server from internet you need to use FQDN or
| > >> public
| > >> IP got from ISP.
| > > I can't connect from my notebook connected at home going back to SBS
box
| > > over the Internet using:
| > > Telnet mail.domain.com 25
| > > This is where I think the problem is. I can't telnet internally on
the
| > > WAN IP address.
| > > telnet 10.0.0.2 25 does not connect.
| > >
| > > But both of these connect correctly. Using LAN IP & server name. When
run
| > > on the SBS box at the command prompt.
| > > telnet 192.168.16.2 25
| > > telnet server01 25
| > >
| > > On the hardware firewall I have enable Pings from the Internet to
test.
| > > I can ping the ISP given IP address (Ping 60.x.x.x).
| > >
| > > Since I can't use telnet insde the SBS 03 box on the WAN IP which is
where
| > > my firewall has to point. The hardware firewall is pointing to
10.0.0.2
| > > for port 25.
| > >
| > > Can I switch something in SBS 03 so telnet will work on the WAN IP
| > > address?
| > >
| > >> 3. Did you have a correct MX records on your ISP side, or your SBS
have a
| > >> FQDN name?
| > > I think so.
| > > I have a MX record of mail.domain.com = 0 and a backup MX record set
at
| > > 100.
| > >
| > >> 4. Is there any NDR if you try to send email from an external
mailbox to
| > >> your Exchange mailbox from internet, for example you can send it from
| > >> hotmail or yahoo mail.
| > > From my Yahoo e-mail account
| > > This is the failure notice I get
| > >
| > > failure notice
| > >
| > > Hi. This is the qmail-send program at yahoo.com.
| > > I'm afraid I wasn't able to deliver your message to the following
| > > addresses.
| > > This is a permanent error; I've given up. Sorry it didn't work out.
| > >
| > > <scott@xxxxxxxxxx>:
| > > Sorry. Although I'm listed as a best-preference MX or A for that host,
| > > it isn't in my control/locals file, so I don't treat it as local.
| > > (#5.4.6)
| > >
| > > --- Below this line is a copy of the message
| > >
| > >
| > >> 5. Can you send the internet email successfully, for example if you
send
| > >> the email to a hotmail account, can you receive the email or not?
| > > Yes I can send internally and out to my Yahoo account without
problems.
| > >
| > > thanks for your help.
| > >
| > > Ron Bunch
| > >>
| > >>
| > >> I really appreciate your effort on this issue, please feel free to
post
| > >> back your results. I am glad to be of 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.
| > >>
| > >> --------------------
| > >> | From: "Steve" <bards@xxxxxxx>
| > >> | References: <O12m1tvCGHA.2036@xxxxxxxxxxxxxxxxxxxx>
| > >> | Subject: Re: SBS 2003 Exchange not getting external e-mail
| > >> | Date: Tue, 27 Dec 2005 09:26:22 -0800
| > >> | Lines: 25
| > >> | X-Priority: 3
| > >> | X-MSMail-Priority: Normal
| > >> | X-Newsreader: Microsoft Outlook Express 6.00.2900.2180
| > >> | X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2180
| > >> | X-RFC2646: Format=Flowed; Response
| > >> | Message-ID: <#35spqwCGHA.3528@xxxxxxxxxxxxxxxxxxxx>
| > >> | Newsgroups: microsoft.public.windows.server.sbs
| > >> | NNTP-Posting-Host: pia140-174.pioneernet.net 66.114.140.174
| > >> | Path:
TK2MSFTNGXA02.phx.gbl!TK2MSFTNGP08.phx.gbl!TK2MSFTNGP12.phx.gbl
| > >> | Xref: TK2MSFTNGXA02.phx.gbl
microsoft.public.windows.server.sbs:232588
| > >> | X-Tomcat-NG: microsoft.public.windows.server.sbs
| > >> |
| > >> | Has external incoming mail ever worked? Are your MX records
properly
| > >> setup?
| > >> |
| > >> | "Ron Bunch" <ronbunch@xxxxxxxxxxxxxxxxxx> wrote in message
| > >> | news:O12m1tvCGHA.2036@xxxxxxxxxxxxxxxxxxxxxxx
| > >> | >I have a SBS 2003 box with Exchange 2003 SP1. I can send/receive
| > >> internal
| > >> | >e-mail. I can send e-mail externally.
| > >> | > I have tested using dnsstuff.com and get the following error.
Could
| > >> not
| > >> | > connect: Connection closed before I received all my data.
| > >> | >
| > >> | > I have dual NICs with a hardware router/firewall between SBS &
| > >> Internet.
| > >> | > WAN 10.0.0.2 255.255.255.0 10.0.0.1 (Gateway)
| > >> | > LAN 192.168.16.2 255.255.255.0 no gateway
| > >> | > On the hardware router I'm port forwarding 25 to 10.0.0.2.
| > >> | > SBS name is Server01
| > >> | >
| > >> | > When I test on the SBS box with telnet I get:
| > >> | > Telnet 10.0.0.2 25 I get the command prompt back right away.
| > >> | > Telnet 192.168.16.225 I connect to Exchange.
| > >> | > Telnet Server01 25 I connect to Exchange.
| > >> | >
| > >> | > My router is pointing to 10.0.0.2 so the e-mail does not come to
| > >> Exchange.
| > >> | > Does anybody know what I'm missing?
| > >> | >
| > >> |
| > >> |
| > >> |
| > >>
| > >
| > >
| >
| >
| >
|

.

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