If users send mails to abc@postfix_pop3.com, I don't get this looping problem; it's only when they send mails to abc@exchange_pop3.com.
Also, previously when POP3 was enabled on Exchange 2003 server & "auto-forwarding" was not set up on the Exchange mailbox, I don't get this looping mails issue. If it's not appropriate to mail replies/solutions to postfix group, appreciate if anyone can email me directly. Flooded with mails... Roger
