turns out it only happens with on demand recording (*1)
if whole session is recorded it transfers parameters to .sh fine
it is clear in logs
[2016-09-30 00:59:20] VERBOSE[2265] app_mixmonitor.c: Executing [/var/lib/asterisk/bin/emailrecording.sh]
[2016-09-30 00:50:50] VERBOSE[27016][C-00000017] app_mixmonitor.c: Executing [/var/lib/asterisk/bin/emailrecording.sh 20160930-005041 007 internal-008-007-20160930-005041-1475211041.43 1475211041.43 008]
might be a bug
can someone check if on demand recording sends?