Hi everyone. I have a php contact form, that reports the following postfix error (getting that in maillog file): https://hastepaste.com/view/jr41N
The same applies for, when I send an e-mail to that e-mail address by using Outlook. Obviously my mail server having troubles sending e-mails to some servers in public, perhaps the remote e-mail server doesn't has SSL/TLS activated, maybe? But, I don't enforce/force smtp tls, having: smtp_tls_security_level = may - in my main.cf. How can I solve this problem from my side? Thank you.
