seems to work ...
I have made some changes following your wiki technical infos ....
################### Logwatch 7.4.0 (03/01/11) ####################
Processing Initiated: Wed Sep 2 07:35:18 2015
Date Range Processed: yesterday
( 2015-Sep-01 )
Period is day.
Detail Level of Output: 0
Type of Output/Format: mail / text
Logfiles for Host: zobe
##################################################################
--------------------- Amavisd-new Begin ------------------------
64 Total messages scanned ------------------ 100.00%
6.193M Total bytes scanned 6,493,696
======== ==================================================
64 Passed ---------------------------------- 100.00%
64 Clean passed 100.00%
======== ==================================================
64 Ham ------------------------------------- 100.00%
64 Clean passed 100.00%
======== ==================================================
64 SpamAssassin bypassed
---------------------- Amavisd-new End -------------------------
--------------------- clam-update Begin ------------------------
Last ClamAV update process started at Tue Sep 1 23:04:46 2015
Last Status:
main.cvd is up to date (version: 55, sigs: 2424225, f-level: 60, builder: neo)
daily.cld is up to date (version: 20866, sigs: 1555579, f-level: 63, builder: neo)
bytecode.cld is up to date (version: 268, sigs: 47, f-level: 63, builder: anvilleg)
---------------------- clam-update End -------------------------
--------------------- httpd Begin ------------------------
Requests with error response codes
502 Bad Gateway
/SOGo/so/user@domain.ltd/Mail/0/f ... BOX/unseenCount: 1 Time(s)
/SOGo/so/user@domain.ltd/Mail/0/f ... fts/unseenCount: 1 Time(s)
/SOGo/so/user@domain.ltd/Mail/0/folderINBOX/uids: 1 Time(s)
---------------------- httpd End -------------------------
--------------------- pam_unix Begin ------------------------
lightdm-greeter:
Unknown Entries:
session opened for user lightdm by (uid=0): 1 Time(s)
su:
Sessions Opened:
tst -> root: 2 Time(s)
systemd-user:
Unknown Entries:
session closed for user tst: 2 Time(s)
session opened for user tst by (uid=0): 2 Time(s)
session opened for user lightdm by (uid=0): 1 Time(s)
---------------------- pam_unix End -------------------------
--------------------- Postfix Begin ------------------------
12.421M Bytes accepted 13,024,370
8.229M Bytes sent via SMTP 8,628,253
4.193M Bytes delivered 4,397,189
18.981K Bytes forwarded 19,437
======== ==================================================
128 Accepted 100.00%
-------- --------------------------------------------------
128 Total 100.00%
======== ==================================================
120 Connections
120 Disconnections
136 Removed from queue
58 Delivered
70 Sent via SMTP
8 Forwarded
100 Postscreen
100 Policy SPF
1 Timeouts (inbound)
6 SASL authenticated messages
---------------------- Postfix End -------------------------
--------------------- Connections (secure-log) Begin ------------------------
**Unmatched Entries**
systemd-logind: New seat seat0.: 1 Time(s)
systemd-logind: Watching system buttons on /dev/input/event1 (Power Button): 1 Time(s)
If you need more data, do, not hesitate.