Comment by usr1106

Interesting thread. However, for over a year, the "secure email provider" did not reply more than that the consultants are too overloaded to reply...

The message you obviously refer to as just an educated guess by a forum user who seems to be experienced in email topics. It could be that the guess is correct. It could be hat the consumtants are too overloaded to configure things differently. Another user has that guess. We don't know as long as the provider does not answer.