If mail begins with a mbox From_ line, take the message's received date from it. Also if -f parameter hasn't been specified, take the envelope sender from it.
If mail begins with a mbox From_ line, take the message's received date from
it. Also if -f parameter hasn't been specified, take the envelope sender
from it.

Distrotech/dovecot,Distrotech/dovecot,Distrotech/dovecot,Distrotech/dovecot,Distrotech/dovecot