I read in the manual that changing the TLS conﬁguration for the SMTP server through the
GUI is available only in the 'Enterprise' version,
We've installed a third-party (Digicert) certificate for the Web interface.
Would it be possible to modify the MTA config file to use this Web certificate for SMTP
TLS as well?
It now points to a self-signed certificate I assume:
# server side TLS configuration
smtpd_tls_cert_file = /etc/postfix/tls.pem
smtpd_tls_key_file = $smtpd_tls_cert_file