I've been trying to figure out whats wrong here for 2 days now and I just can't seem to get any further.
I have a customer who's been trying to mail me for 2 days now. All messages he sends to me, bounce back with a message from Sophos stating "Internal Server Error". Nothing more... This customer is located in the Office 365 cloud however. All other mail (every other customer, gmail, hotmail, linkedin, etc) is all being delivered without error.
I've been scouring the logs, but the Web Interface never lists the sender in any of the logs. Had to go to the appliance to the 'awarrensmpt.log' to actually find a reference. There I find 4 log entries :
ERROR Aug 13 13:11:33 [3942988608]: add_notification(): created notification '0xb0000003' to '@' on ':25'
ERROR Aug 13 13:11:33 [3942988608]: process_forward_queue(): popped notification '0xb0000003' to '@' on ':25'
ERROR Aug 13 13:11:34 [3942988608]: checkup_mx(): created notification '0xb0000003' to '@' on ':25'
ERROR Aug 13 13:11:34 [3944258368]: forward_mail(): forwarding notification '@' on ':25'
It seems something happens to the mail and the customer gets the mentioned notification... I however can't figure out what is going wrong, where and why...
Anybody able to shed some light on this?
