I copied my old Profile to the new hard drive - Username|App Data|Roaming|Thunderbird|Profiles|

Please provide absolute path names from where and to where you copied stuff, as well as the actual folder(s) you copied.

christ1 said </blockquote> Please provide absolute path names from where and to where you copied stuff, as well as the actual folder(s) you copied. </blockquote>

From is my old hard drive.

From: Users|Christine|AppData|Roaming|Thunderbird|Profiles|eumvrzu.default

To is my new SSD and new installation of Thunderbird.

To: Users|Chris|AppData|Roaming|Thunderbird|Profiles|eumvrzu.default

I copied all the folders in the eujmvrzu.default folder.

In Server Settings|Message Storage, the Local Directory is: C:\Users\Chris\AppData\Roaming\Thunderbird\Profiles\eujmvrzu.default\ImapMail\imap.googlemail-1.com

eujmvrzu.default is 1.01 GB 362 Files, 42 Folders on the old drive and eujmvrzu.default is 1.06 GB 368 Files, 42 Folders on the new drive

The difference in size is because I've run the new Thunderbird for a week and have downloaded 645 new messages.

I do see one anomaly and wonder if this is an issue.

I have 3 folders in ImapMail imap.cox.net - 149 MB imap.googlemail.com - 17 KB imap.googlemail-1.com - 753 MB

All of the mail in my new installation of Thunderbird totals about 60 MB.

Am I not using the map.googlemail-1.com folder in this new installation of Thunderbird?

Are you saying you copied the 'eujmvrzu.default' profile name folder and put it in the : C:\Users\Chris\AppData\Roaming\Thunderbird\Profiles folder

Access this: C:\Users\Chris\AppData\Roaming\Thunderbird folder please open the 'profiles.ini' file using Notepad and post an image of it's contents.

Toad-Hall said

Are you saying you copied the 'eujmvrzu.default' profile name folder and put it in the : C:\Users\Chris\AppData\Roaming\Thunderbird\Profiles folder

Yes

Access this: C:\Users\Chris\AppData\Roaming\Thunderbird folder please open the 'profiles.ini' file using Notepad and post an image of it's contents.

OK, I think you've found the problem. I think my new .ini is pointing to the wrong thing.

Old hard drive Profile location: (Username is Christine) Users|Christine|AppData|Roaming|Thunderbird|Profiles|eumvrzu.default

Profile.ini from old drive:

[General] StartWithLastProfile=1

[Profile0] Name=default IsRelative=1 Path=Profiles/eujmvrzu.default

New hard drive Profile location: (note, username is Chris, not Christine) Users|Chris|AppData|Roaming|Thunderbird|Profiles|eumvrzu.default

Profile.ini from new drive:

[General] StartWithLastProfile=1

[Profile0] Name=Christine IsRelative=1 Path=Profiles/eujmvrzu.default

So, do I need to change the "Name=" to Chris in the new Profile.ini or do I change it to default?

You don't need to change anything in profiles.ini. Just keep in mind, your profile name on the new computer is 'Christine' pointing to the profile directory 'eujmvrzu.default'.

eujmvrzu.default is 1.01 GB 362 Files, 42 Folders on the old drive and eujmvrzu.default is 1.06 GB 368 Files, 42 Folders on the new drive The difference in size is because I've run the new Thunderbird for a week and have downloaded 645 new messages.

So the delta would be roughly 50 or 60 MB.

I do see one anomaly and wonder if this is an issue. I have 3 folders in ImapMail imap.cox.net - 149 MB imap.googlemail.com - 17 KB imap.googlemail-1.com - 753 MB All of the mail in my new installation of Thunderbird totals about 60 MB.

So basically you're missing about 750 MB worth of email messages? If so, why is the delta of the size of the profile on the old and the new computer only about 50 - 60 MB? Where are those 750 MB of missing emails?

What is your account type - POP or IMAP?

Am I not using the map.googlemail-1.com folder in this new installation of Thunderbird?

You can check underneath Account Settings - Server Settings: what is the full path in the 'Local directory' field?