Upgraded to 4.67.6, still not getting any MailScanner messages in Mail.log

[Greg Deputy]

I'm running debian etch, just upgraded to MailScanner 4.67.6 from 4.66.5.  I
suddenly stopped seeing MailScanner logging in my /var/log/mail.log file a
few weeks back in 4.66.5 and could never find out why.  I  thought maybe
upgrading to the latest version would fix it, but no go.  I could use some
help to figure out why.

I do get the startup messages when MailScanner starts, like below:

Mar 21 09:04:01 mx1 MailScanner[17339]: MailScanner E-Mail Virus Scanner
version 4.67.6 starting...
Mar 21 09:04:02 mx1 MailScanner[17339]: Read 814 hostnames from the phishing
whitelist
Mar 21 09:04:02 mx1 MailScanner[17339]: Could not read phishing blacklist
file
Mar 21 09:04:02 mx1 MailScanner[17339]: Config: calling custom init function
ByDomainSpamBlacklist
Mar 21 09:04:02 mx1 MailScanner[17339]: Starting up by-domain spam
blacklist, reading from /etc/MailScanner/spam.bydomain/blacklist
Mar 21 09:04:02 mx1 MailScanner[17339]: Read blacklist for 6 domains
Mar 21 09:04:02 mx1 MailScanner[17339]: Config: calling custom init function
ByDomainSpamWhitelist
Mar 21 09:04:02 mx1 MailScanner[17339]: Starting up by-domain spam
whitelist, reading from /etc/MailScanner/spam.bydomain/whitelist
Mar 21 09:04:02 mx1 MailScanner[17339]: Read whitelist for 64 domains
Mar 21 09:04:02 mx1 MailScanner[17339]: SpamAssassin temporary working
directory is /var/spool/MailScanner/incoming/SpamAssassin-Temp
Mar 21 09:04:02 mx1 MailScanner[17339]: Using SpamAssassin results cache
Mar 21 09:04:02 mx1 MailScanner[17339]: Connected to SpamAssassin cache
database

But that's it.  I used to get all the logging on messages being scanned,
spamassasin rules hit, etc, and I'm really missing that.  Any suggestions on
what to check would be greatly appreciated.