another 'bump' DO IT!
And think about using it for postfix etc. ;-) as default!
You can use RSA & ECDSA Parallel!
# TLS RSA public / private keys
smtpd_tls_cert_file = /etc/ssl/certs/mail.domain.tld.cer
smtpd_tls_key_file = /etc/ssl/private/mail.domain.tld.key
# TLS ECDSA public / private...