Firstly, thanks guys for what seems like an awesome project!
I’m playing around with NethServer 7.7.1908 and when setting up the email server I also setup a smarthost. Occasionally, not on all emails, when I check the queue there is half a dozen or so emails that have the error message:
“TLS is required, but was not offered by host”
What I don’t understand is why this happens to only a few emails. If I remove the smart host and flush the mail queue the emails get sent successfully. I have used 2 different smarthosts and both get the same issue. One is my ISP and the other is an internal mail server.
Any help would be most appreciated…