slow mail

[Vaz, Len]

Situation: Mail is being delivered very slowly on one of the
mailservers running qmail. It speeds up when I do a HUP on qmail-send
and kill -ALRM on qmail-send. Seems like it is not triggering
before I do mess with qmail-send. The lock/trigger file seems
to have the proper permissions. Any idea of what might be 
happening and why mail starts rolling only when I mess with qmail-send.

Thanks,

Len