Email returning ( Sender denied) from one of government organisation.
Please see the reply from our denied mails for your kind for your reference. Can not deliver the message you sent. Will not retry. Sender: The following addresses had delivery problems : Reply from xxxxxxx.com[1X2.1XX.X.XX]: >>> MAIL FROM: SIZE=23508 <<< XXX 5.X.X Sender denied. Also note we have check at recipient server end and they have received so many mail from other clients and they have shown the same. Hence we need your reply and help in this regard to solve this issue further. Thanks.