Wietse Venema: > Postfix snapshot 20180617, released a few minutes ago, introduces > Postfix SMTP client support for multiple deliveries per TLS-encrypted > connection. This is not to be confused with closing a connection > and reusing some TLS state in a new connection.
BTW this is also called 'connection pooling'. There's a mailgun
blog that discusses how they cut their SMTP-over-TLS delivery times
in half by 'pooling' TLS connections.
Wuetse
