I noticed today that on Feedly my forum's RSS feed is full of spam postings i deleted days ago. The forum doesn't have much activity, so many of those spam posts are still the most recent.

I checked the MySQL database to be sure they are really gone. They are indeed. So, does that mean the RSS service still has them? How do i go about getting rid of them?

I am a complete novice with all this and learning a lot about it is not something i have any time for right now. But of course if i'll do the work to act on any replies to this. Thanks.