procmail error

[Ramzi Abdallah]

Hi

I noticed that my /var/log/maillog contains procmail errors such as this one.

Sep 28 11:16:54 intranet qmail: 970100214.227272 delivery 2: success: procmail:_
Lock_failure_on_"/var/spool/mail/rsa.lock"/did_0+0+2/


any idea what might be causing this??

Thanks

Ramzi