undelivered mail returned to sender this is the postfix program at host mx 6 . go 2 . pl .
i ' m sorry to have to inform you that your message could not be
be delivered to one or more recipients . it ' s attached below .
for further assistance , please send mail to
if you do so , please include this problem report . you can
delete your own text from the attached returned message .
the postfix program
: unknown user : " zdjeco "