I have installed Mailscanner with F-prot some time ago and have a lot of spam going through the mail server.
Email apparently works fine on the server, and I can see on the mail log that mailscanner is working but not sure if it's doing it correctly.

Oct 18 11:30:12 srv34 sendmail[9155]: k9IEBiZ09056: to=, ctladdr= (385/100), delay=00:18:28, $
Oct 18 11:30:17 srv34 in.qpopper[11268]: (v?) POP login by user "sofia" at (201.235.92.210) 201.235.92.210
Oct 18 11:30:20 srv34 mailscanner[3443]: Scanning 3 messages, 45173 bytes
Oct 18 11:30:21 srv34 in.qpopper[11269]: (v?) POP login by user "lsandoval" at (200.73.136.242) 200.73.136.242
Oct 18 11:30:23 srv34 mailscanner[3443]: Found 1 viruses in messages k9IEU6Z11257
Oct 18 11:30:23 srv34 mailscanner[3443]: Scanned 3 messages, 45173 bytes in 1 seconds
Oct 18 11:30:23 srv34 mailscanner[3443]: Did not notify non-local senders about 1 infections
Oct 18 11:30:23 srv34 mailscanner[3443]: Commercial disinfector f-prot returned 768
Oct 18 11:30:23 srv34 sendmail[11286]: k9IETvZ11240: to=, delay=00:00:25, xdelay=00:00:00, mailer=local, pri=121057, dsn=2.0.0, st$
Oct 18 11:30:24 srv34 mailscanner[3443]: Found 1 viruses in messages k9IEU6Z11257


I think my version of f-prot is: fp-linux-ws-4.5.4.tar.gz
I have checked and definition files are up to date.
Mailscanner version is: MailScanner-4.40.11-1.rpm.tar.gz

But....
I found some errors when checking mailscanner:

this command /etc/rc.d/init.d/mailscanner status
will give me:

Checking MailScanner daemons:
MailScanner: ERROR!
incoming sendmail: ok
outgoing sendmail: ERROR!


and this one: /etc/rc.d/init.d/mailscanner restart
will give me:

Shutting down MailScanner daemons:
MailScanner: ERROR!
incoming sendmail: sendmail ok
outgoing sendmail: sendmail ok
Starting MailScanner daemons:
makemap: /etc/mail/virtusertable: line 1060: key @www.sinapbit.com.ar: duplicate key
makemap: /etc/mail/virtusertable: line 1071: key @www.theantiquesnet.com: duplicate key
incoming sendmail: ok
outgoing sendmail: ok
MailScanner: ok


Can any one tell me if there is any other test I can make to know if Mailscanner is working correctly and how I can fix those errors?
Thank you