ietf-smtp
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Re: Mail Data termination

2011-08-18 07:58:43

Tony Finch wrote:
Murray S. Kucherawy <msk(_at_)cloudmark(_dot_)com> wrote:
One of the more ubiquitous MTAs out there has a feature called
"connection caching" where it will keep some fixed number of outbound
SMTP connections around, cycled using an LRU method, in case a new
message arrives that is routed to a recent destination to avoid the cost
of making a new connection and doing the initial SMTP negotiation.

I believe Postfix and Exchange can do this.

This is also basically known as worker pools. Generally used for scalability, as of recent years also used to help address socket/ports exhaustion exploits.

--
Sincerely

Hector Santos
http://www.santronics.com


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