ENV{"PATH"}. errors on my log

Hi,

I'm getting this error a lot on my logs:

May 01 12:57:03 imap: Error: Use of uninitialized value $ENV{"PATH"} in split at /usr/lib/x86_64-linux-gnu/perl-base/File/Spec/Unix.pm line 136.

I googled a bit and the only reference I found was related to the possibility of imapsieve scripts that could be generating this. I haven't found any perl script on my install, but I momentarily turned off spamassassin, but the logs continued.

Any hint on how I can debug this? Turning the debug logs on dovecot didn't bring me any extra information of what the source of this could be.

Best, Francis

-- Francis Augusto Medeiros-Logeay Oslo, Norway