RE: SPF support in opendkim?

From: Murray S. Kucherawy <msk_at_cloudmark.com>
Date: Thu, 11 Aug 2011 16:20:52 -0700

> -----Original Message-----
> From: Steve Fatula [mailto:compconsultant_at_yahoo.com]
> Sent: Thursday, August 11, 2011 2:54 PM
> To: Murray S. Kucherawy; Opendkim
> Subject: Re: SPF support in opendkim?
>
> On higher volume postfix servers, all those processes being separate
> significantly reduces emails per hour one can handle.

I'd like to see some data to back that up. In the analysis I've done, both of them spend most of their time waiting for DNS replies, not cranking through analysis steps or talking back and forth with postfix. And if that's true, then combining the two into one won't save you much of anything in the long run; the I/O delay of having to talk to two filters instead of one will be noise compared to how long you're waiting for DNS servers on far away networks to answer your queries for SPF policies and DKIM keys.

-MSK
Received on Thu Aug 11 2011 - 23:21:00 PST