RE: Failing to archive many messages

Today I realized that it was indeed the sa-learn that is slowing down my Archiving.

I added an «&» on the end of the line that calls the sa-learn (called by the report-ham.sieve script):

exec /usr/bin/sa-learn -u ${1} --ham &

Does anyone thing this is a bad idea? I noticed that archiving got way faster this way…

You fork/spawn a new process. So depending on how many messages are moved, that many processes are created. I am not using sa-learn, but I think this could be a memory consuming task. So manybe check for OOM crashes or your swap space slowing everything down.