Re: Newb question (SMTP connector issue?)

And when you say "relay mail off a server like your ISPs"...does that mean i
SHOULD configure the SMTP connector to forward all out-going mail to the
hosting provider's mail-server? Or does "relay" mean something else
altogether?

"Paul Ford (Edge IT Ltd)" wrote:

aimechanic,

Does your SBS server have a dynamic IP address ? If it does then you might
have difficulty sending to serveral domains i.e. AOL and Microsoft. If you
do have a dynamic ip address and that is the cause of the issue then the
resolution is to either get a static IP address or relay mail off a server
like your ISPs or a service like http://www.authsmtp.com/

Regards

Paul Ford
Edge IT Ltd

"aimechanic" <aimechanic@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:8506F543-F2F5-4821-9B4B-A17D1388A838@xxxxxxxxxxxxxxxx
We are running Small Business Server 2003 (not R2) with Exchange 2003.
Prior
to installing SBS 2003, mail accounts for the business were handled by
their
web-site hosting provider (and Outlook 2003). When SBS2003 was installed,
we
setup the POP3 Connector to go retrieve email from the hosting
provider...that's all good. We had thought SMTP was all good, as well,
until
today.
A message was sent from an employee to an local newspaper's email address
(with promotional material to publish). This was rejected by the
newspaper's
mail-server. The message in that rejection notice was (all names and IPs
changed to protect the innocent):

<mail.thebusiness.org #5.7.1 smtp;550 5.7.1 Access denied. IP name lookup
failed [215.136.88.3] SRC003 Contact postmaster@xxxxxxxxxxxxx>

So, I looked at it and eventually figured out part of the problem.
I looked at the header info in a message he sent me at my home\personal
account
Employee's email address is employee@xxxxxxxxxxxxxxxx
Header shows "recieved from: [215.136.88.3] (helo=mail.thebusiness.org)"
But [215.136.88.3] is the firewall\router address
(Any name response it gives, if any, is more likely to be:
bizdc.thebusiness.LOCAL ...the FQDN of the DC\Exchange server)

MX record at hosting provider is mail.thebusiness.org = 62.233.167.104
So: The receiving mail server couldn't get a response from [215.136.88.3]
(or didn't get the name it expected -->
mail.thebusiness.org...whichever)...so, it rejected it. That's my best
guess.

Server's been up and delivering mail without an issue for about two
month's
so it was a surprise that this issue took so long to pop up,
but...hey...things happen.

So, I look through a load of MSKB articles, but to be honest...alot of
them
are talking in a foreign language, and I ended up more confused than when
I
started out.
I THINK I'm supposed to configure the SMTP connector to forward\pass all
out-going mail to the HOSTING PROVIDER'S mail-server (mail.thebusiness.org
=
62.233.167.104) instead of sending it direct from Exchange
(BIZDC.thebusiness.local = 215.136.88.3).
Then, when the (receiving\NEWSPAPER's) mail-server gets the message and
looks up the IP\name, it will talk to (mail.thebusiness.org =
62.233.167.104), get the response it wants\expects, and all will be well.

I THINK...but since MSKB articles have to cover so many different
configurations and scenarios, I can't filter out my own scenario well
enough
to be SURE (and I really don't want to make a relatively minor issue...one
recipient mail-server rejection...and turn it into a major issue (no mail
goes out or something equally drastic).
So, I thought I'd ask here and see if anyone can simplify this
issue\solution down to a level I can understand a little better???

Thanks,
aimechanic



.

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