[MlMt] Duplicate IMAP folders (from Apple Mail?)

[Blair Hartsfield]

What is the best way (MailMate.app, Mail.app or other ways) to 
consolidate duplicate IMAP folders showing in MailMate?

I guess from using/testing multiple OS X mail clients over the years, 
I've ended up with duplicate folders like:

-Deleted Messages
-Deleted Messages (BH account name)

-Drafts
-Drafts (BH account name)

The odd thing is that, from daily use for example, both the -Deleted 
Messages folders are being used for discarding emails.

Should I use MM?  Apple Mail?  Or….I actually do own these domains in 
question and have cPanel and/or WHM access to the web host box and could 
do that way?

FWIW, I am now only using MailMate going forward…but wanted to clean a 
little of this issue up.

Thanks in advance for any help in this (most likely) newbie question!

-
Blair H