postfix internal mail forward fails
hi there
i recently changed the hostname of the system. everything runs fine, mail sending and receiving works but mail forwards.
for example:
userA has his mail forwarded to userB (both on the same domain), both have regular mail accounts (no alias, just forward copy)
if i send mail to userA, the mail is properly transfered to the inbox but not forwarded to userB, instead i receive as a sender: