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"No one on internet can log on to our ex

By talbot ·
Installed MS proxy and configured Exchange to work with it. Internal clients can send and recieve mail to eachother and to and from internet. In addition, remote clients can log on and send and receive via POP3 and SMTP using Outlook 2000s internet mail client, but they can't use outlook 2000 to log on using the exchange server (which relies on MAPI for functionality). Everyone recieves the enter password screen and no one can log on to it!

The error message is "the logon credentials supplied were incorrect", but they are correct! So the data is getting through to the server, and its rejecting it. in addition, i can telnet to MS Proxy and logon to the POP3 service successfully. Do I have to tweak MAPI somehow? What ports does MAPIuse? I haven't found much at all online about MAPI. Why can't anyone outside authenticate? All the ports are open. It doesn't sound like a proxy problem to me, but please enlighten me.

Thanks in advance.

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"No one on internet can log on to our ex

by calves In reply to "No one on internet can l ...

Based on my limited knowledge of Exchange, it seems that you have the right configuration. Are the remote users able to browse the network, view info on Network Neighborhood?
Have you try, when users receive the logon to exchange box, to insert thedomain before the username (like this mydomain\calves) then the password?

Good luck!

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"No one on internet can log on to our ex

by talbot In reply to "No one on internet can l ...

I think the problem is no MAPI calls can get through and I can't figure out how to change that.

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"No one on internet can log on to our ex

by curlergirl In reply to "No one on internet can l ...

You don't say much about your setup, but how are users logging on from the Internet? It sounds like you have set up IIS to allow external clients to send and receive email. I believe a VPN or Outlook Web Access would be required in order for external mail clients to access Exchange mailboxes. Hope this helps!

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"No one on internet can log on to our ex

by talbot In reply to "No one on internet can l ...

I set up OWA. Sorta wonky product, but better than POP for remote email!

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