where are the language strings stored?

After making some changes to the language files on one site, I transferred the database to another site, but the language files did not change on the new site. Where are they stored so I can move them to the new site without having to t redo them all again?

They are stored in language file language/en-GB/en-GB.com_osmembership.ini

You can get that language file from your site and transfer it to your new site (I assume that you are using English language)

Tuan

What about the emails?

Emails are stored in database. So if you migrate the database to the new site, it will be migrated.

Tuan

To be more exactly, it is stored in #__osmembership_messages database table

Tuan