[Mailman-Users] cron Log error

[Darryl Harvey]

I am running mailman on Linux, with Postfix as the MTA, I have noticed
in my CRON log files I have entries like;

May 21 18:50:00 cascade CROND[5249]: (mailman) CMD (/usr/bin/python -S
/var/mailman/cron/qrunner)
May 21 18:50:00 cascade CROND[5250]: (mailman) CMD (/usr/bin/python -S
/var/mailman/cron/gate_news)
May 21 18:50:02 cascade CROND[5245]: (mailman) MAIL (mailed 272 bytes of
output but got status 0x004b )
May 21 18:50:02 cascade CROND[5246]: (mailman) MAIL (mailed 650 bytes of
output but got status 0x004b )
May 21 18:51:01 cascade CROND[5365]: (mailman) CMD (/usr/bin/python -S
/var/mailman/cron/qrunner)
May 21 18:51:02 cascade CROND[5364]: (mailman) MAIL (mailed 272 bytes of
output but got status 0x004b )
May 21 18:52:00 cascade CROND[5374]: (mailman) CMD (/usr/bin/python -S
/var/mailman/cron/qrunner)
May 21 18:52:02 cascade CROND[5373]: (mailman) MAIL (mailed 272 bytes of
output but got status 0x004b )
May 21 18:53:01 cascade CROND[5425]: (mailman) CMD (/usr/bin/python -S
/var/mailman/cron/qrunner)
May 21 18:53:02 cascade CROND[5424]: (mailman) MAIL (mailed 272 bytes of
output but got status 0x004b )
May 21 18:54:00 cascade CROND[5447]: (mailman) CMD (/usr/bin/python -S
/var/mailman/cron/qrunner)


What concerns me are the entries of;
May 21 18:53:02 cascade CROND[5424]: (mailman) MAIL (mailed 272 bytes of
output but got status 0x004b )

What is this ???  After restarting the PC and/or mailman they start and
go every minute for approx 6Hrs...  Last one started upona machine
reboot, first entry @ 10:03.  Last entry @ 18:53..

Should I be concerned about this?  Should they be there at all ?

Any pointers welcome.

Mailman version 2.0.9
Postfix Version: 1.1.7
Linux: RedHat: 7.3 (With updates)

Thanks
Darryl