Look for the easiest answer first. I've seen cases where users are typing a
name and it AutoChecks it to a Distribution List. The user is not really
paying attention and it gets sent as such. More often than not, this stems
from allowing a comma as the address separator in Outlook. So, what I'm
basically saying is that I'd check what the client's doing first and look at
their machine's configuration.
> I'm having a problem. Users are swearing up and down they are sending
> messages to a single recipient, but dozens are receiving it. It seems
> to be limited to one batch of users/recipients.
> Could this be sign of corruption in the directory store?
> I don't want to turn logging on due to drive space/performance issues,
> except as a last resort.