Hi, I am using postfix to send mails to external world. One of the external recipient mentioned the requirement to setup MTLS, where they want a publicly signed client side certificate to establish TLS. I want to present client side certificate only to the required domain as it can cause issues at times as per the doc. Is it possible to create a separate smtp transport and pass client TLS_CERT_FILE to it or should I use a different postfix instance altogether?
snippet from master.cf tlsenforce unix - - n - - smtp -o smtp_tls_cert_file=/etc/postfix/cert.pem -o smtp_tls_key_file=/etc/postfix/cert.pem -o smtp_tls_loglevel=2 -o smtp_tls_policy_maps=cdb:/etc/postfix/tls_maps Sandy
