So you are saying you have a folder (like inbox) with 32Gb of email in it. That does sound quite excessive to me. Most unwieldy.

Greetings Matt...

I have several INBOX, sub-folders with 10GB to 30+GB. I was thinking of moving the bulk of older posts in each sub-folder, to another drive but still have read and search access through TB. Kind of like an archived set of folders, only not maintained by TB day to day operations.... in home cloud storage if you will.

Any thoughts?

Thanks Mike H

Top be brutal, anything over a couple of GB is asking for trouble. The kind antivirus delivers when it locks a file for inordinate amounts of time while it scans. I hope you have an exclusion in antivirus from an scanning in the Thunderbird profile while the application is running.

Now to your original question. You can do all sorts of things, but what wiull be most successful for you will depend on if the folders are in POP or IMAP accounts. Things become more complex with IMAP and more complex again if the account is Gmail.