| Author |
Message |
Jon Doe
Guest
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 Posted:
Fri Dec 23, 2005 5:58 pm Post subject:
E2K3: Connectors |
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Hi,
I posted a while ago about a particular domain my company's having problems
sending e-mails to. This happens to be one of our biggest vendors, but when
sending e-mails to this domain (it's a big bank), e-mails either get delayed
(2-3 hours at times), never get there at all, or the recipient at the bank
gets multiple copies. So far, the admins at the other end and myself have
simply been pointing fingers... easier to blame the other guy :)
I'm looking to try something here with connectors. I have two SMTP servers,
and two IMC showing up in the routing groups for each VS. I believe there's
a way to configure a connector that routes for particular domains, but I've
never done it before. So how can I set up a connector such that, this new
connector will handle mail for just "company.com"? I'm wondering if by
sending that traffic through its own connector I might be able to hopefully
isolate the problem.
So my questions are basically, how do I set up such a connector, and is
there any advantage to setting up something like this? Thanks much!
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Jonathan Norris
Guest
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| Posted:
Sat Dec 24, 2005 8:11 am Post subject:
RE: E2K3: Connectors |
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Sounds like a lot of work. By any chance is either side either using
Sendmail or Cisco Pix Firewalls with mailguard enabled.
I have seen situations where it malforms the email header and causes all
sorts of wierd issues such as these.
I am one for fixing the problem rather than painfull workarounds.
--
Jonathan
No Warrenties Implied, Did you do a FULL backup today??????
"Jon Doe" wrote:
| Quote: |
Hi,
I posted a while ago about a particular domain my company's having problems
sending e-mails to. This happens to be one of our biggest vendors, but when
sending e-mails to this domain (it's a big bank), e-mails either get delayed
(2-3 hours at times), never get there at all, or the recipient at the bank
gets multiple copies. So far, the admins at the other end and myself have
simply been pointing fingers... easier to blame the other guy :)
I'm looking to try something here with connectors. I have two SMTP servers,
and two IMC showing up in the routing groups for each VS. I believe there's
a way to configure a connector that routes for particular domains, but I've
never done it before. So how can I set up a connector such that, this new
connector will handle mail for just "company.com"? I'm wondering if by
sending that traffic through its own connector I might be able to hopefully
isolate the problem.
So my questions are basically, how do I set up such a connector, and is
there any advantage to setting up something like this? Thanks much!
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Nareshverma
Guest
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| Posted:
Sat Dec 24, 2005 9:58 am Post subject:
Re: E2K3: Connectors |
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Hi,
Merak mail server can be Star-POP downloaded for email and can
forward that traffic to Exchange
Usually it is easier to filter, AV screen etc and the let Exchange be
the mail server for the users.
you can also use the merak mail aserver as a smtp
note:- u must use two ip address for the mail server one for merak and
2nd for exchage and also use the binding the merak
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rackemup@ubernoth.com
Guest
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| Posted:
Sun Dec 25, 2005 1:58 am Post subject:
Re: E2K3: Connectors |
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I'm responding via the internet to this right now, but I'm the one with
the original question. I have a PIX firewall on my side, but mailguard
is disabled, but the other side does use Sendmail! Please share your
experience with sendmail causing these problems...
One thing is that we have no problem sending mail anywhere else except
to this vendor of ours, and it's looking like sendmail is getting in
the way. Thanks much!
Jonathan Norris wrote:
| Quote: | Sounds like a lot of work. By any chance is either side either using
Sendmail or Cisco Pix Firewalls with mailguard enabled.
I have seen situations where it malforms the email header and causes all
sorts of wierd issues such as these.
I am one for fixing the problem rather than painfull workarounds.
--
Jonathan
No Warrenties Implied, Did you do a FULL backup today??????
"Jon Doe" wrote:
Hi,
I posted a while ago about a particular domain my company's having problems
sending e-mails to. This happens to be one of our biggest vendors, but when
sending e-mails to this domain (it's a big bank), e-mails either get delayed
(2-3 hours at times), never get there at all, or the recipient at the bank
gets multiple copies. So far, the admins at the other end and myself have
simply been pointing fingers... easier to blame the other guy :)
I'm looking to try something here with connectors. I have two SMTP servers,
and two IMC showing up in the routing groups for each VS. I believe there's
a way to configure a connector that routes for particular domains, but I've
never done it before. So how can I set up a connector such that, this new
connector will handle mail for just "company.com"? I'm wondering if by
sending that traffic through its own connector I might be able to hopefully
isolate the problem.
So my questions are basically, how do I set up such a connector, and is
there any advantage to setting up something like this? Thanks much!
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Rich Matheisen [MVP]
Guest
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| Posted:
Sun Dec 25, 2005 1:58 am Post subject:
Re: E2K3: Connectors |
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"Jon Doe" <jdoe@comcast.net> wrote:
| Quote: | I posted a while ago about a particular domain my company's having problems
sending e-mails to. This happens to be one of our biggest vendors, but when
sending e-mails to this domain (it's a big bank), e-mails either get delayed
(2-3 hours at times), never get there at all, or the recipient at the bank
gets multiple copies. So far, the admins at the other end and myself have
simply been pointing fingers... easier to blame the other guy :)
|
It would help if you noted what O/S you're using, too. W2K3 SP1 has a
problem with the tcpip.sys driver that causes weird problems that are
usually traceable to bad MTU sizes.
Installing this MS hot fix usually cures the problem:
Installing security update MS05-019 or Windows Server 2003 Service
Pack 1 may cause network connectivity between clients and servers to
fail [898060]
| Quote: | I'm looking to try something here with connectors.
|
It would also help if you said why the messages remain in the outbound
queue. Select the queue and look at the bottom of the window for the
reason.
Messages that are delivered to recipients more than once are most
often a problem caused by the receiving end of the connection.
Checking the SMTP protocol log may reveal some silliness like the
receiving server responding with a 4xx status at the end of the
message, immediately followed by a 2xx status. Exchange correctly
interprets that as a transient failure and retries the message later.
The receiving server thinks it's done a good job because it sent the
2xx status and sends the message to the final destination.
| Quote: | I have two SMTP servers,
and two IMC showing up in the routing groups for each VS.
|
That's kinda confusing. An IMS is an Exchange 4.0 or 5.x thingy.
| Quote: | I believe there's
a way to configure a connector that routes for particular domains, but I've
never done it before. So how can I set up a connector such that, this new
connector will handle mail for just "company.com"?
|
Create a new SMTP Connector in the routing group. Add "company.com" to
the "Addesss Space" tab. Assuming you want to send mail to a specific
server, change the "use DNS..." to "Forward all..." on the "General"
tab and put the name of the target server into the edt box. Select
one, or more, SMTP Virtual Servers as "Local bridgeheads".
| Quote: | I'm wondering if by
sending that traffic through its own connector I might be able to hopefully
isolate the problem.
|
I doubt it. We've had to do this several times to fix a problem, but
it's always been done *after* the troubleshooting, not as a part of
it.
| Quote: | So my questions are basically, how do I set up such a connector, and is
there any advantage to setting up something like this? Thanks much!
|
I don't think you'll help very much by doing it unless you know *why*
you're doing it.
--
Rich Matheisen
MCSE+I, Exchange MVP
MS Exchange FAQ at http://www.swinc.com/resource/exch_faq.htm
Don't send mail to this address mailto:h.pott@getronics.com
Or to these, either: mailto:h.pott@pinkroccade.com mailto:melvin.mcphucknuckle@getronics.com mailto:melvin.mcphucknuckle@pinkroccade.com |
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