Wow, that's a quick response :) thanks. Below is the full initial config, did not change anything on syslog-ng.conf. The source definition is the "default" one: source s_src { system(); internal(); }; I will try to look into some documentations about those MARK signals. cosmin@srv:/etc/syslog-ng$ cat syslog-ng.conf @version: 3.5 @include "scl.conf" @include "`scl-root`/system/tty10.conf" # Syslog-ng configuration file, compatible with default Debian syslogd # installation. # First, set some global options. options { chain_hostnames(off); flush_lines(0); use_dns(no); use_fqdn(no); owner("root"); group("adm"); perm(0640); stats_freq(0); bad_hostname("^gconfd$"); }; ######################## # Sources ######################## # This is the default behavior of sysklogd package # Logs may come from unix stream, but not from another machine. # source s_src { system(); internal(); }; # If you wish to get logs from remote machine you should uncomment # this and comment the above source line. # #source s_net { tcp(ip(127.0.0.1) port(1000)); }; ######################## # Destinations ######################## # First some standard logfile # destination d_auth { file("/var/log/auth.log"); }; destination d_cron { file("/var/log/cron.log"); }; destination d_daemon { file("/var/log/daemon.log"); }; destination d_kern { file("/var/log/kern.log"); }; destination d_lpr { file("/var/log/lpr.log"); }; destination d_mail { file("/var/log/mail.log"); }; destination d_syslog { file("/var/log/syslog"); }; destination d_user { file("/var/log/user.log"); }; destination d_uucp { file("/var/log/uucp.log"); }; # This files are the log come from the mail subsystem. # destination d_mailinfo { file("/var/log/mail.info"); }; destination d_mailwarn { file("/var/log/mail.warn"); }; destination d_mailerr { file("/var/log/mail.err"); }; # Logging for INN news system # destination d_newscrit { file("/var/log/news/news.crit"); }; destination d_newserr { file("/var/log/news/news.err"); }; destination d_newsnotice { file("/var/log/news/news.notice"); }; # Some `catch-all' logfiles. # destination d_debug { file("/var/log/debug"); }; destination d_error { file("/var/log/error"); }; destination d_messages { file("/var/log/messages"); }; # The root's console. # destination d_console { usertty("root"); }; # Virtual console. # destination d_console_all { file(`tty10`); }; # The named pipe /dev/xconsole is for the nsole' utility. To use it, # you must invoke nsole' with the -file' option: # # $ xconsole -file /dev/xconsole [...] # destination d_xconsole { pipe("/dev/xconsole"); }; # Send the messages to an other host # #destination d_net { tcp("127.0.0.1" port(1000) log_fifo_size(1000)); }; # Debian only destination d_ppp { file("/var/log/ppp.log"); }; ######################## # Filters ######################## # Here's come the filter options. With this rules, we can set which # message go where. filter f_dbg { level(debug); }; filter f_info { level(info); }; filter f_notice { level(notice); }; filter f_warn { level(warn); }; filter f_err { level(err); }; filter f_crit { level(crit .. emerg); }; filter f_debug { level(debug) and not facility(auth, authpriv, news, mail); }; filter f_error { level(err .. emerg) ; }; filter f_messages { level(info,notice,warn) and not facility(auth,authpriv,cron,daemon,mail,news); }; filter f_auth { facility(auth, authpriv) and not filter(f_debug); }; filter f_cron { facility(cron) and not filter(f_debug); }; filter f_daemon { facility(daemon) and not filter(f_debug); }; filter f_kern { facility(kern) and not filter(f_debug); }; filter f_lpr { facility(lpr) and not filter(f_debug); }; filter f_local { facility(local0, local1, local3, local4, local5, local6, local7) and not filter(f_debug); }; filter f_mail { facility(mail) and not filter(f_debug); }; filter f_news { facility(news) and not filter(f_debug); }; filter f_syslog3 { not facility(auth, authpriv, mail) and not filter(f_debug); }; filter f_user { facility(user) and not filter(f_debug); }; filter f_uucp { facility(uucp) and not filter(f_debug); }; filter f_cnews { level(notice, err, crit) and facility(news); }; filter f_cother { level(debug, info, notice, warn) or facility(daemon, mail); }; filter f_ppp { facility(local2) and not filter(f_debug); }; filter f_console { level(warn .. emerg); }; ######################## # Log paths ######################## log { source(s_src); filter(f_auth); destination(d_auth); }; log { source(s_src); filter(f_cron); destination(d_cron); }; log { source(s_src); filter(f_daemon); destination(d_daemon); }; log { source(s_src); filter(f_kern); destination(d_kern); }; log { source(s_src); filter(f_lpr); destination(d_lpr); }; log { source(s_src); filter(f_syslog3); destination(d_syslog); }; log { source(s_src); filter(f_user); destination(d_user); }; log { source(s_src); filter(f_uucp); destination(d_uucp); }; log { source(s_src); filter(f_mail); destination(d_mail); }; #log { source(s_src); filter(f_mail); filter(f_info); destination(d_mailinfo); }; #log { source(s_src); filter(f_mail); filter(f_warn); destination(d_mailwarn); }; #log { source(s_src); filter(f_mail); filter(f_err); destination(d_mailerr); }; log { source(s_src); filter(f_news); filter(f_crit); destination(d_newscrit); }; log { source(s_src); filter(f_news); filter(f_err); destination(d_newserr); }; log { source(s_src); filter(f_news); filter(f_notice); destination(d_newsnotice); }; #log { source(s_src); filter(f_cnews); destination(d_console_all); }; #log { source(s_src); filter(f_cother); destination(d_console_all); }; #log { source(s_src); filter(f_ppp); destination(d_ppp); }; log { source(s_src); filter(f_debug); destination(d_debug); }; log { source(s_src); filter(f_error); destination(d_error); }; log { source(s_src); filter(f_messages); destination(d_messages); }; log { source(s_src); filter(f_console); destination(d_console_all); destination(d_xconsole); }; log { source(s_src); filter(f_crit); destination(d_console); }; # All messages send to a remote site # #log { source(s_src); destination(d_net); }; ### # Include all config files in /etc/syslog-ng/conf.d/ ### @include "/etc/syslog-ng/conf.d/*.conf" Best Regards Cosmin Neagu On 8/6/2015 4:37 PM, Fabien Wernli wrote:

Hi,

The "strange" messages you're seeing are MARK signals generated indeed by syslog-ng.

The fact that you see them in your email means for some reason that your log path logic fails to do what you want.

Could you please post the full configuration, especially the source definitions which were missing in your first email. ?

Cheers

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Also you can set mark-mode() to none which filters out all mark messages. On Aug 6, 2015 4:52 PM, "Fabien Wernli" <wernli@in2p3.fr> wrote:

Hi,

On Thu, Aug 06, 2015 at 04:43:16PM +0200, Cosmin Neagu wrote:

...

source s_src { system(); internal(); };

reading the docs on "mark-mode()" you can see that it's set to "internal" for "program()" destinations. Also: "When internal mark mode is selected, internal source should be placed in the log path as this mode does not generate mark by itself at the destination".

You *did* place "internal()" into the log path through "s_src" which explains why the mark messages *are* routed through the logpath containing your email program.

Now you have to find out why the filter isn't working.

What I'd also do if I were you is look up the native "smtp()" destination which could simplify your config.

Cheers

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