"Balzi Andrea" schrieb: > When I receive a mail to a wrong address, the sender receives the > following message: [...] > SMTP error from remote mail server after RCPT > TO:<[EMAIL PROTECTED]>: > host internal-mail01.local.domain [XXX.XXX.XXX.XXX]: 550 5.1.1 User > unknown
IMHO you should reconsider that configuration. As far as I can see you accept the message on one machine without checking if the recipient is valid, pass it on, and if the recipient does not exist, you send a bounce message back to the sender. Nothing wrong with that - as long the sender really *is* the sender. In today's world, you'll get lots opf spam with a faked sender, and so you'll send lots of bounces to innocent people. It would be much better to check if the recipient is valid *before* you accept the message on the first host. You would not have to bounce it back then, but could just reject it, *and* you would not reveal your internal configuration in the bounce (I think you want to strip the internal-mail01.local.domain and its IP from the bounce message), because internal-mail01.local.domain would never get the mail. -thh -- ## List details at http://lists.exim.org/mailman/listinfo/exim-users ## Exim details at http://www.exim.org/ ## Please use the Wiki with this list - http://wiki.exim.org/
