[SOLVED] logrotate does not compress rotated file

[vetch101]

OK - so I've looked at it...
In the /etc/logrotate.d/ folder, there is a sendmail file which is all commented out...
And a syslog.bastille file which is empty...

Currently, my mail.info, mail.log and mail.log.prov are all around 5-600MB, as is my syslog file, and auth.log is 120MB.
The log rotation for apache and the other services seem to be working...

Whilst I'm using postfix (clearly), should I be uncommenting the sendmail log rotation file?

Also, is there a good syslog logrotation file that I could use?

Finally, will it screw things up with these massive log files when I run the logrotation for the first time?

Many thanks,

Jx