From time to time, sadly every week or so, some user will ask about an email she was waiting for and that supposedly was sent by her contact, so she will go and blame the mail server because se had not got the email. This multiply by several users.
This "users" are administrators on our final customers, that are companies.
But after going through the logs we always found out that the problems were outside our domain, like:
- The message never arrives to our servers
- The sender was on a blacklist
- The message got blocked by some policy, like message to big
I'd would like to know if you also have to deal with this kind of situation and how are doing it, and if not, why?
Thanks you so much.