I want to turn off the the bounce error class to reduce clutter in my postmaster mailbox, but don't want to miss something important.
The bounce error class is defined ( http://www.postfix.org/postconf.5.html#notify_classes) as: 'Send the postmaster copies of the headers of bounced mail, and send transcripts of SMTP sessions when Postfix rejects mail.' I understand the second of these (and receive many of them, which I don't want) but not the first (and don't seem to receive any). What are 'copies of the headers of bounced mail' - would this be mail that has been bounced by Postfix (not interesting to me) or mail bounced by an onward mailserver (interesting to me - but maybe this is covered by the 2bounce error class)?
