A few days ago I switched from SmarterMail spam filtering to SpamExperts. However, I don't see a great deal of difference in the results. I still see one or two hundred spam mails daily getting through with a lot less emails being detected as spam. I'm using the default SpamExperts settings. Is this typical or should I be seeing better results? I know I can add to the blacklist and train SpamExperts but this is a bit tedious. I use Microsoft Outlook. It would be much better if there was an Outlook plug-in that let me do this directly rather than having to go to the SpamExperts web interface. Even better if it did a better job of spam detection out of the box.
SpamExperts have an Outlook Add-On to help manage spam but it doesn't appear to work for Outlook 2016. https://github.com/SpamExperts/outlook-addon/issues/11
For me, SpamExperts is catching all of the Spam as I no longer see any in SmarterMail. One thing you should check is what I mentioned in this forum post, where, spammers were still using the old MX records and sending Spam directly to SmarterMail bypassing SpamExperts. This has pretty much stopped now as I think the spammers have flushed the old MX references to my email from their systems. There hasn't been any spam bypassing SpamExperts for sometime now. Also, since I've retired from my career in IT and no longer have to use Outlook at work I've stopped using it at home as well. I've switched to eM Client and like it way better than Outlook for home use. Not that it has anything to do with your Spam issue. I review my Spam Quarantine in SpamExperts everyday before deleting the messages. I had noticed that much of the spam is coming from many of the newer domains, other than; com, net, us. So, I've blacklisted all domains except those 3 and now my Spam Quarantine is much smaller every day. Here's the link to that post I mentioned. https://community.discountasp.net/t...termail-to-only-spamexperts-mx-records.23378/
Thank you for the links and information. I'm having the same issue you were seeing ie old MX records still in use. Hopefully this will eventually resolve itself. Did DASP ever look into filtering at their mail server to accept only from SpamExperts as you asked?
As far as I know DASP has never made any changes to fix this. As a work around I entered a Content Filter in SmarterMail at the Domain level to filter out any email that does not contain "antispamcloud.com" in the header. In the beginning I had the filter just prefix the subject line so I could see that the filter was working, afterwards, I changed it to delete the email.
The old MX records shouldn't persist more than a day or two at the most. They are the same as any other DNS record. In the old days we would tell people to wait 72 hours for changes to propagate, now it's more like 72 minutes. Or less. Why the MX routing would persist longer in certain areas, I don't know. Unless some high volume spammers are maintaining their own DNS servers that they don't update, but that seems pretty unlikely (and not in their best interest). The content filter seems like a good idea, since the problem should solve itself in a short time anyway.