Re: [exim] Spool file is locked (another process is handling…

On 2012-04-11 at 13:26 -0700, Yan Seiner wrote:
> 2012-04-11 13:22:16 1SI3wt-0006jb-DK Spool file is locked (another process
> is handling this message)

Run "exiwhat", it will tell you which Exim processes exist, what they're
currently doing, etc.

Usually this message just means that there's a slow remote host, an Exim
from another queue runner is already trying to deliver the mail, and so
this queue-runner is skipping that message and going onto the next one
in the queue. As such, it's harmless. As long as that is what's
happening.

A diagnostic log message like this just says "I'm not handling it
myself, because ...", not "there's a problem to be fixed". Now, if it
persists on the same message for a while, you might look into what's
happening with that particular message. Perhaps the recipient system
is doing something icky, such as passing your connections to a tarpit
system.

-Phil