Problem running JMC with jabberd2

I have FreeBSD 4.11-stable
I am running jabberd2 without problems
I installed/configured JMC properly
when i run JMC with: python jmc.py -c jmc.xml &
it works fine and checks emails without problems BUT:
after i logout from the console sometimes JMC just dies and after i login again i see that it is not running and sometimes it is running but it just does not checks the mail

I tried to run it without & but when i press ctrl+c to be able to logout from console it dies
I tried running it as non root user with: sudo -u jabber/usr/local/sbin/python /usr/local/etc/jabberd/jmc/jmc.py -c /usr/local/etc/jabberd/jmc/jmc.xml &

and still the same problem after logout from console it does not dies but it does not check the mail

also everytime i start JMC it checks the already checked mail again

the folder /var/spool/jabber/jmc exists and is writable by user jabber
the JMC files are to writable by jabber

Please help

Thank you