Theoretically, that should work, if you copied the entire original "Local Folders" Windows folder to "C:\Thunderbird\Mail".

If you didn't copy the entire folder and it's contents, there could be problems.

An alternate way of doing this (possibly a better way), is to move the whole Thunderbird Profile folder to the new location, not just the Local Folders.

See: Moving your profile folder - Thunderbird

thanks...,Still fiddling with this. Now a search will bring up the heading but not the body of the email.

re :Hit the limit on email storage in Thunderbird

Can you supply a bit more info? Are you talking about an imap or pop mail account ? If imap then the limits may be refering to emails on server not in Thunderbird.

If you then copied a load if imap mail account files and folders into C:\Thunderbird\Mail location, is it possible that you have not synchronised those imap mail account first to get a downloaded copy.

Because it sounds like you have only copied headers and now those folders cannot synchronise with server to display the content.

RE: copied and pasted all the emails to a new drive located at C:\Thunderbird\Mail

Please post an image showing contents of that 'Mail' folder.

I agree that "Hit the limit on email storage in Thunderbird" doesn't make much sense, unless a person puts too many e-mails in a folder. I assumed you mean that you ran out of space on the hard drive.

If the issue is like what Toad-Hall says, surpassing the limits on your e-mail server, that's a whole different ballgame.

If the issue is running out of hard drive space, then I still say that you should move the whole Thunderbird Profile properly to the bigger hard drive. The program itself can stay where it is.

I hope you meant that the new drive is a driver letter other than C:, because drive C: is normally the system drive.

It's POP...

I copied the contents of the Mail' folder in this directory- C:\Users\Joe3\AppData\Roaming\Thunderbird\Profiles\lmog55nm.default

Perhaps I should have copied the entire directory? The 'Mail' files on their own can not be opened in either the original directory or the new directory location.

thanks for your advice....

Follow these instructions to Create a new profile and copy the old one over it.

Thanks...I'll give a try.

Problem solved...thank you for your advice.