[MlMt] Train SpamSieve _AFTER_ moving a bunch of email to Junk folder?

[William P. N. Smith]

[Administrivia, the subscription box at https://freron.com/contact/ 
doesn’t work, says you need a valid email]

So I’ve been using MailMate for a while, and wondering why the emails 
that I “Move To Junk” haven’t been doing anything, even though 
SpamSieve Enable was checked.

OK, so it wasn’t clear that SpamSieve wasn’t installed, should I be 
able to check “SpamSieve Enable” if it’s not installed?

Anyway, just installed SpamSieve, and I’d like to use some of the spam 
that I’ve been doing “Move To Junk” on for the last few days to 
train it, but everything in my Junk mailbox is already marked as Junk, 
but SpamSieve isn’t training on it, just the new mail that I tag.

Is there any way to untag the messages in my Junk folder so I can retag 
them and have SpamSieve add them to the Corpus?

Obviously I don’t want to tag them as “Not Junk”…

Thanks!