Why does the abrtd daemon delete recently created application core dumps?

Issue

• Coredump is not generated on third party application crash
• The abrtd daemon deletes recently created core dumps
• Error: Package isn't signed with proper key

• Sample error 1 :

  Jul 22 11:29:32 hostname abrtd: Directory 'ccpp-1342936772-2814' creation detected
  Jul 22 11:29:32 hostname abrtd: Registered Database plugin 'SQLite3'
  Jul 22 11:29:32 hostname abrtd: Executable '/home/tools/Bin/myapp' doesn't belong to any package
  Jul 22 11:29:32 hostname abrtd: Corrupted or bad crash /var/spool/abrt/ccpp-1342936772-2814 (res:4), deleting
  

• Sample error 2 :

  Sep  3 12:00:40 hostname abrt[20427]: saved core dump of pid 6231 (/opt/dell/srvadmin/sbin/dsm_om_connsvcd) to /var/spool/abrt/ccpp-2014-09-03-12:00:39-6231.new/coredump (228581376 bytes)
  Sep  3 12:00:40 hostname abrtd: Directory 'ccpp-2014-09-03-12:00:39-6231' creation detected
  Sep  3 12:00:40 hostname abrtd: Package 'srvadmin-iws' isn't signed with proper key
  Sep  3 12:00:40 hostname abrtd: Corrupted or bad dump /var/spool/abrt/ccpp-2014-09-03-12:00:39-6231 (res:2), deleting
  Sep  3 12:00:41 hostname abrtd: Got signal 15, exiting
  Sep  3 12:05:11 hostname abrtd: Init complete, entering main loop
  

• Sample error 3:

  abrt[9423]: Saved core dump of pid 3498 (/opt/openoffice4/program/soffice.bin) to /var/spool/abrt/ccpp-2014-08-21-15:00:38-3498 (262381568 bytes)
  abrtd: Directory 'ccpp-2014-08-21-15:00:38-3498' creation detected
  abrtd: Package 'openoffice' isn't signed with proper key
  abrtd: 'post-create' on '/var/spool/abrt/ccpp-2014-08-21-15:00:38-3498' exited with 1
  Aug 21 15:00:42 localhost abrtd: Deleting problem directory '/var/spool/abrt/ccpp-2014-08-21-15:00:38-3498'
  

• Sample error 4:

  abrt[43923]: Saved core dump of pid 42295 (/mysql/binaries/agent/monitor/libexec/mysql-monitor-agent) to /var/spool/abrt/ccpp-2015-12-03-13:00:27-42295 (146460672 bytes)
  abrtd: Directory 'ccpp-2015-12-03-13:00:27-42295' creation detected
  abrtd: Executable '/mysql/binaries/agent/monitor/libexec/mysql-monitor-agent' doesn't belong to any package and ProcessUnpackaged is set to 'no'
  abrtd: 'post-create' on '/var/spool/abrt/ccpp-2015-12-03-13:00:27-42295' exited with 1
  abrtd: Deleting problem directory '/var/spool/abrt/ccpp-2015-12-03-13:00:27-42295'