I have a minor dilema I figure someone out there may have had in the past. I have an Exchange 5.5 server running on my corporate network. The test dept. here is testing IPSwitch I-Mail as an smtp email server. We have the router configured alowing the right ports for the server specific IP. Now here’s the dilema:
We can send mail from the outside to the I-Mail box. We can send mail out from and I-Mail account to the outside world and to anyone here locally on the domain. But when we try to send a message from the Exchange server (via Outlook 2000) from someone here in house to an I-mail account we get a message like this:
Unable to deliver the message due to a communications failure:
3902 (000B099C) Host Unknown
Any help would be appreciated.
tech_nt@yahoo.com
