Losing LAN generated emails

[Michael Harnden]

Recently migrated to openpkg install of version 2.3. Seems like emails 
generated on my LAN (reports from servers, cron jobs, etc) are disappearing.

I followed this "how-to"
http://wiki.kolab.org/What_is_happening_to_my_emails_where_are_their._Search_your_postfix_log_to_find_them
and found this in my lmtpd.log

[root at kolab var]# tail -f /kolab/var/imapd/log/lmtpd.log
Aug 13 12:20:13 kolab.moeshouse.site <debug> lmtp[30359]: mystore: committing 
txn 2147484134
Aug 13 12:20:13 kolab.moeshouse.site <debug> lmtp[30359]: duplicate_mark: 
<1147285105.1344874644293.JavaMail._DCATSVC_Mess at n7mmsaapp07.starwave.com> 
.mike+ at moeshouse.site.sieve. 1344874813 0
Aug 13 12:24:11 kolab.moeshouse.site <debug> lmtp[30384]: executed
Aug 13 12:24:11 kolab.moeshouse.site <debug> lmtp[30384]: accepted connection
Aug 13 12:24:11 kolab.moeshouse.site <debug> lmtp[30384]: connection from 
localhost [127.0.0.1] preauth'd as postman
Aug 13 12:24:11 kolab.moeshouse.site <debug> lmtp[30384]: append_fromstage: 
message 1041 added to moeshouse.site!user.mike
Aug 13 12:24:11 kolab.moeshouse.site <info> lmtp[30384]: Delivered: 
<20120813162410.760B2A13B8 at centos.moeshouse.site> to mailbox: 
moeshouse.site!user.mike
Aug 13 12:24:11 kolab.moeshouse.site <debug> lmtp[30384]: mystore: starting 
txn 2147484138
Aug 13 12:24:11 kolab.moeshouse.site <debug> lmtp[30384]: mystore: committing 
txn 2147484138
Aug 13 12:24:11 kolab.moeshouse.site <debug> lmtp[30384]: duplicate_mark: 
<20120813162410.760B2A13B8 at centos.moeshouse.site> .mike+ at moeshouse.site.sieve. 
1344875051 0

According to the append_fromstage: entry, I should have message # 1041 in my 
inbox, but it is not there. Mail fetched from my ISP is delivered fine. 
Subsequent messages started numbering at 1042 (or one more than the missing 
message in other cases).

Any troubleshooting suggestions?

Thanks,
Mike