Logrotate + sendmail work bad

[Eriberto <jemf@gabcmt.eb.mil.br>]

Hello,

My /etc/logrotate.conf:

weekly
rotate 48
create
#compress
#include /etc/logrotate.d

However, the mail.log is rotated daily and compressed. How to make 
logrotate work fine with sendmail?

Thanks,

Eriberto