Email sender App

before, I used an Email sender app, but after Google changed its guidelines, this doesn’t work.

Does anyone have any suggestions for a solution?
uses e-mail for notifications and for consumption reports


Since the update to version 1.0.0 yesterday the app is not sending mails anymore.
I already started the app but test mail returns following error message:

Error: Client network socket disconnected before secure TLS connection was established.

Did anybody experience the same issue?
Can anybody help?