I've never seen this problem before and I hope I never see it again.
A customer's branch office based in Sydney, Australia sends out a daily industry newsletter to their customers but for reasons specific to their industry they doesn't want any of the customers to realize who the other customers are. Consequently the author mails the newsletter to himself with all of the customer addresses in the BCC field.
Two days ago he mailed the newsletter out as normal but it bounced at one address (let's say for 'Mr Smith') because Mr Smith no longer worked at the target organization. After that all of the other 100+ customers listed in the BCC field received the Non-Delivery Report for Mr Smith addressed to themselves, and since they were given the original email encapsulated within the NDR then they could see the contents of the BCC field and thereby understand who all of the other 100+ customers were. So somehow the Router task had taken the contents of the BCC field and used that to address the NDR.
The customer had been getting random corruptions in their mail.box file on a monthly basis for over a year but Lotus support hadn't been able to determine the reason for this. Recently the corruptions had been hitting mail files also but Fixup never found a problem. I have a sneaking suspicion that the files weren't actually corrupt, and that a wayward Router Task is somehow to blame for all of this, but the server has been taken up and down more times than a Bride's nighty and there is still no end to the problem. The next step is to completely reinstall the server and patch it to R7.04 but that still doesn't answer the question of what happened.
The customer is standardized on Notes across the world and is unlikely to abandon the platform. They are looking at upgrading to R8.5 later this year, but for now they would like some reassurance that the problem won't occur.
Anyone seen this kind of problem before?
The server is an unclustered R7.02 FP3 running on Windows 2003 server. A PMR has been raised for this issue and if any Loti wants to investigate it further then I'm happy to give them the reference.