A quick recap If you remember, last time I blogged about this software we ended up turning it off because it was causing a lot of problems with a particular regular correspondant. Well... We turned the service back on after about a week because we were getting a lot of spam. I changed the settings to notify us if an email was blocked, but not to delete/quarantine it. We were notified of the spam, but were never notified of mail from the "offending" mail system (and mail from that system was not being delivered). Clearly the problem was much more than a simple mis-detection issue. The Real Culprit After doing a lot of searching, I eventually found the answer. It was that Microsoft, being unsatisfied with using the industry standard 7 bit MIME format, decided to implement an 8 bit version. Out of the box, Notes/Domino has compatibility with this format turned off (after all, it isn't the industry standard). Normally what would happen is that; An Exchange server would con...