Tag Information Storage

Where is email message tag information stored?
Suddenly I have lost tags on all messages.
Hoping to find a backup from a prior day.

Which beta version do you have installed?

Any idea of what you did to remove the tags?

They are stored in the SQL database, but if you have deleted them, they will not be there.

If you have enabled Automatic Backups in eM Client, or you have made manual backups, you can restore the most recent one by going to Menu > File > Restore. Be aware that the restore will replace all the data in your database, so anything since the last backup may be lost unless it is synced with an online account. As a precaution, make a new backup before you restore the previous one.

Otherwise for issues when testing beta software, it might be better to send your feedback to testing@emclient.com