I cannot send email after the upgrade to version 7.1.31547

I have been using Juno. I can still receive emails but cannot send. I get a error message that authentication failed. Is there a way to go back to later version of eM? I tried going back to a computer checkpoint before the upgrade, but eM said the database was incompatible and I had to load the latest version.

Did you manage to solve this Frank? I replied to your other post with this same question with how to downgrade.