I get single emails multiple times

[Truppe Steven]

 Hi everyone,

everything worked fine for some weeks and now my users get their emails more 
than one time (sometimes the same mail gets recieved 7 times!). I also have
troubles with horde (also this worked for a few weeks) and now mysql get's 
shutdown normal !! i get no error message - only mysql shutdown normal... is 
there a crontab in the openpkg rc files that shut's down mysql under special
conditions ? 

here is the version overview: kolab 2.0rc4

Kolab2 Groupware Server Component Versions
 perl-kolab-5.8.5-20050530
 kolabd-1.9.4-20050615
 kolab-resource-handlers-0.3.9-20050615
 kolab-webadmin-0.4.0-20050616

Kolab2 Patched OpenPKG Package Versions
 amavisd-2.1.2-2.2.0_kolab
 apache-1.3.31-2.2.3_kolab2
 imapd-2.2.12-2.3.0_kolab4
 postfix-2.1.5-2.2.0_kolab3

openpkg-2.2.3-2.2.3

 best regards,
 truppe steven