So I've never really understood the php mail function, but I've tried to set up msmtp after failing a bit with postfix. The problem I get now is when I go to send an email I get an error "unpexted TLS packed recieved". My account conf is:
account default tls on tls_starttls off tls_trust_file /etc/ssl/certs/ca-certificates.crt auth on host smtp.office365.com port 587 user *** password *** logfile /var/log/mail/mail.log
I'm guessing that because this is a TLS issue, I'm not doing something that's causing office365 domain to reject me? Can someone help?