I have an Exchange 2003 running on Windows 2003 Enterprise server, in a Windows 2003 Enterprise domain (mixed mode). I set up the Recipient Policy for receiving msgs and SMTP connector for sending out msgs. I also have an auto-forward rule set up in my Inbox to forward all msgs (that I receive) to the Inboxes/Public Folders in other domains (different forests). All the messages can get to most domains OK. Except 2 domains:
1. One of these 2 domains cannot receive anything from my domain. Even a manually-sent e-mail.
2. The other domain can receive manually-sent messages no problems. But it only receive au-forwarded messages from my domain intermittently. For excample, everyday the auto-forward rule in my Inbox sends out 20 e-mails. But the Public folder/Inbox on this domain can only receive 1 or 2 e-mails.
May be I didn't set up my SMTP connector correctly? Does anyone know how to fix this?