undelivered mail returned to sender this is the postfix program at host mx 2 . oi . com . br .
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
: host frontend . oi . com . br [ 200 . 222 . 115 . 18 ] said : 550 - mailbox
unknown . either there is no mailbox associated with this 550 - name or you
do not have authorization to see it . 550 5 . 1 . 1 user unknown ( in reply to
end of data command )