Re: open relay
- From: "Lanwench [MVP - Exchange]" <lanwench@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx>
- Date: Mon, 30 May 2005 22:44:27 -0400
In news:d6cea3$ocf$1@xxxxxxxxxxxxxxx,
adbos <allemagnus@xxxxx> typed:
> I have Exchange 2000 in my local network. I pick up all of incoming
> emails from my ISP by POP3 connector.
Exchange doesn't have a POP connector (although SBS includes one)...see note
below.
> I'm sending emails using DNS
> from my local network. Some of my users need to have access from home
> and don't want to use OWA (generaly all of them are company
> management so i can't forbid them:().
Well, you can explain why opening up access to X can be a security
risk...etc.
> I add an aditional network card
> to my EX2K and asign an public IP adres to that card.
Why did you feel you needed you do this?
> After that i
> have configured IMAP protocol to use SSL.
Why do you need two NICs for IMAP?
> Everything is working just
> fine. At my home i installed Relay Test PRO and make some tests.
I'm not sure what that is - but a simple telnet test will generally suffice.
> Results was like 20 messages from 47 tests was accepted by my
> server!!! I don't cnow what to do, i tried to fix it, using article
> Understanding Relaying and Spam with Exchange 2000 from
> msexchange.org. When i set up everything like it says in that
> article, i can't send email to any domain other then mine!
Sounds like you didn't set it up right. In fact, you didn't need to do
anything at all in order to allow authenticated users to relay through your
server - that's enabled by default.
> I need to
> send emails from outside my company using IMAP protocol.
You don't send mail via IMAP. IMAP is for receiving. SMTP is for sending.
You haven't explained what your exact error is.
> PLEASE
> HELP!!!
> Best Regards
> AdboS
Undo everything you've done and start over. What's the need for the 2nd NIC,
and why would you want a public IP on it? If all you want is to open up IMAP
to your server from the Internet, just forward the port(s) you want in your
firewall. I personally prefer for external users to send outbound mail via
their ISP's SMTP server rather than relaying through their Exchange server.
The fact that you have a POP connector is going to add an additional layer
of complexity/point of failure. I'd switch to direct SMTP mail delivery
instead - much faster & more reliable.
Have you looked into VPN & full Outlook access for corporate laptops?
.
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