Re: Dozens of qmail-smtpd processes eating 100% of CPU

[Alex Kirk <alex.kirk@sourcefire.com>]

Kyle Wheeler wrote:
> On Friday, May 18 at 02:28 PM, quoth Jason Frisvold:
> > On 5/18/07, Kyle Wheeler <kyle-qmail@memoryhole.net> wrote:
> > > Well, if I'm right and it is the TLS/SSL patch, then it will only 
> > > become a problem when people who support STARTTLS attempt to contact 
> > > you. Since many servers do not, it won't be a problem most of the time.
> > This one's pretty easy to check too..  Set your mail client up to use 
> > TLS and start sending mail..  Watch the processor and if you see it 
> > spike when you start trying to send, this could very well be the 
> > problem.
> Even easier:
>
>     openssl s_client -starttls smtp -connect localhost:25
>
> If that takes longer than a second to connect, we've found our culprit.
>
> ~Kyle
Nope. Took maybe a half-second before I got "CONNECTED(00000004)".

Alex