> You are probably seeing these for every queue run. So it may not be that > many frozen messages.
Yep, quite right :-)
> First you may wish to use eximon to inspect and manually manipute things
> in the queue. Otherwise, people have very recently on this list posted
> scriptlets for removing frozen messages.
It's probably broken addresses or broken exchange servers.
> There are also several configuration options regarding what should be
> done with frozen messages. Particularly frozen error messages (which many
> people like to discard after a day or two).
>
> That can be set with
>
> ignore_errmsg_errors_after = 2d
>
> if you want to keep them around for two days.
