sub.domain.com Exchange 2000 Server connection with domain.com SMTP
Posted on 2004-10-12
I have a somewhat ordinary, but apparently less common than I thought, problem involving the following:
* Exchange 2000 Server for email.domain.com behind ISA firewall - IMAPS, POP3S, OWA and SMTP all work fine
* LSMTP server for domain.com residing in DMZ just outside the ISA box (MX points to this box's IP)
We're in the middle of transitioning from LSMTP to Exchange (a good move, I think). I've set up a few accounts in Exchange and have Outlook clients connecting properly, but still pull email from our POP3 server. I'd like to forward specific email@example.com accounts internally as firstname.lastname@example.org, and have Exchange populate the mailboxes. At the same time, I'd like to allow Exchange users to send mail to domain.com users that are not yet set up on Exchange. To do this, I've created an SMTP Connector to the domain.com SMTP server for processing. It works (ie. I can send mail from OWA to a user not on Exchange but within our domain). However, when I send mail to email@example.com, it is somehow forwarded to the LSMTP server. Is this impossible?