Controllando il log /var/log/cron/info ho notato che ogni 5 minuti viene eseguito un programma:

Jul 11 20:35:00 www CROND[20859]: (mail) CMD (/usr/bin/python -S /usr/lib/mailman/cron/gate_news)

Allora ho controllato in /var/spool/cron è c'è il file mail che contiene le seguenti righe:

# DO NOT EDIT THIS FILE - edit the master and reinstall.
# (/usr/lib/mailman/cron/crontab.in installed on Wed Dec 22 18:06:33 2004)
# (Cron version -- $Id: crontab.c,v 2.13 1994/01/17 03:20:37 vixie Exp $)
# At 8AM every day, mail reminders to admins as to pending requests.
# They are less likely to ignore these reminders if they're mailed
# early in the morning, but of course, this is local time...
0 8 * * * /usr/bin/python -S /usr/lib/mailman/cron/checkdbs
#
# At 9AM, send notifications to disabled members that are due to be
# reminded to re-enable their accounts.
0 9 * * * /usr/bin/python -S /usr/lib/mailman/cron/disabled
#
# Noon, mail digests for lists that do periodic as well as threshhold delivery.
0 12 * * * /usr/bin/python -S /usr/lib/mailman/cron/senddigests
#
# 5 AM on the first of each month, mail out password reminders.
0 5 1 * * /usr/bin/python -S /usr/lib/mailman/cron/mailpasswds
#
# Every 5 mins, try to gate news to mail. You can comment this one out
# if you don't want to allow gating, or don't have any going on right now,
# or want to exclusively use a callback strategy instead of polling.
0,5,10,15,20,25,30,35,40,45,50,55 * * * * /usr/bin/python -S /usr/lib/mailman/cron/gate_news
#
# At 3:27am every night, regenerate the gzip'd archive file. Only
# turn this on if the internal archiver is used and
# GZIP_ARCHIVE_TXT_FILES is false in mm_cfg.py
27 3 * * * /usr/bin/python -S /usr/lib/mailman/cron/nightly_gzip

Qualcuno sa dirmi cosa fa, perchè ce l'ho e se è meglio cancellarlo?