Hello. I am encountering problems with false negatives (good email being marked as spam). I have tried whitelisting and training as good, but it does not work. I imagine the problem is from the server side - marking as spam before getting to spam sieve. I do not appear to be able to turn off server side spam filtering on Office 365, so I am unsure how to correct this problem.
I use my own domain email with Office 365 mail (exchange). I cannot turn off spam filtering in the Office 365 settings, therefore I am unsure how to have Spam Sieve override the Office 365 mail settings. What I am getting is “good” emails being caught in “JUNK” folder, despite the fact I have set up Whitelist rules in Spam Sieve to prevent this. That makes me think the problem is in Office 365. Do you know how to disable spam filtering in Office 365 so I can use SS as the primary spam control system?
The best solution is to disable the server filter. However, if that’s not possible, you can use this script to have SpamSieve re-filter the messages that the server filter caught.
Please see this page and look at whether there are “Predicted” entries for the messages in question.