Update Fix Found
in your server settings put "export.imap.mail.yahoo.com , use ssl, port993 and use requires authentification
Since updating yahoo wont sync at all and its not even coming up with error message just not working.
I have followed Gary’s suggestion from another thread and its still not working?
- Close and uninstall eM Client, making sure NOT to delete the database folder when asked. That will ensure all your data and settings are there later.
- If it exists, delete the C:\Program Files (x86)\eM Client folder.
- Download and install the latest version from here: https://www.emclient.com/dist/latest/setup.msi
- Restart eM Client.