E R via Postfix-users:
> Is there a HowTo web page that I am overlooking to implement TLS
> connection reuse? I believe my lack of caching of TLS connections to
> my upstream gateway is causing performance issues when the tidal wave
> of ListServ emails hit me.
You need to enable TLS connection reuse with
smtp_tls_connection_reuse = yes
and enable the tlsproxy service.
You probably also need to enable SMTP connection reuse with
smtp_connection_cache_on_demand = yes
Connection reuse happens only when it is enabnled in the delivery
agent, AND there are multiple mnessages queued up with the same
"next hop" destination. It has nothing to do with caching of session
handshake info.
The text about "Client-side TLS connection reuse" needs some detail
on how (or if) the SMTP-level reuse setting matters
Wietse
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