Mailq löschen
postsuper -d ALL
/etc/postfix/main.cf
vim main.cf
myhostname = XXX.psychologie.uni-mannheim.de
mydomain = psychologie.uni-mannheim.de
inet_interfaces = all
mydestination = $myhostname, localhost.$mydomain $mydomain
mynetworks = 127.0.0.0/8
sender_canonical_maps = hash:/etc/postfix/sender_canonical
Erstellen: /etc/postfix/sender_canonical
User USER@XXX.de
postmap /etc/postfix/sender_canonical