So, my next idea was to create an account for one of the addy's that has a problem. Now, I don't really want to create new shares for everyone, and have them delete the old, add the new, etc. My idea was that I can simply create a filter, and have it deposit the email in the shared folder.
Not so, sadly. When I try that, the email is rejected by the server.
: host mail.domain.com[192.168.1.36] said: 554 5.0.0
Permanent message delivery failure (in reply to end of DATA command)
At this point, it looks like I'll have to go the new share route. Is there any way to, when an email comes in, have a filter move it to a shared folder?