Delivery Status Notification (Failure)
Delivery to the following recipient failed permanently: valkriloff@yandex.ru
Technical details of permanent failure:
550 5.7.1 No such user! 1755872918-cSV4SW7EDSw0-xMMn1DAC
Technical details of permanent failure:
550 5.7.1 No such user! 1755872918-cSV4SW7EDSw0-xMMn1DAC
68a88e035d494.rfc822-headers