Hello guys,
I am really surprising to see one of my user who trying to sending the email internally getting the following error which i have mentioned below.
Your message wasn't delivered due to a permission or security issue. It may have been rejected by a moderator, the address may only accept email from certain senders, or another restriction may be preventing delivery
mail server:- exchange server 2013
OUTlook:- office 2010
Abp