Use these commands to verify you secure TLS/SSL smtp servers:
# port 25/TLS; use same syntax for port 587
openssl s_client -connect remote.host:25 -starttls smtp
# port 465/SSL
openssl s_client -connect remote.host:465
indexes/how_do_i_connect_to_a_secure_smtp_server.txt · Last modified: d/m/Y H:i by domingo