Jun 2 17:49:37 mostly opendkim[4487]: o52LnUiH030581 DKIM verification successful Jun 2 17:55:57 mostly opendkim[4487]: /var/lib/opendkim/opendkim-stats.db: dkimf_db_open() failed Jun 2 17:55:57 mostly opendkim[4487]: o52LtcVk030704 "X-DKIM" header add failed Jun 2 17:56:17 mostly opendkim[4487]: o52LuAhB030723: no signature data Jun 2 18:01:13 mostly opendkim[4487]: o52M17sT030845: dkim_eoh(): resource unavailable: can't create temporary file at /var/tmp/dkim.o52M17sT030845.BdtVgt: Too many open files Jun 2 18:05:08 mostly opendkim[4487]: o52M51Li030894: dkim_eoh(): resource unavailable: can't create temporary file at /var/tmp/dkim.o52M51Li030894.lAmPLy: Too many open files Jun 2 18:06:49 mostly opendkim[4487]: o52M6iaX030923: dkim_eoh(): resource unavailable: can't create temporary file at /var/tmp/dkim.o52M6iaX030923.xJ5Pgw: Too many open files Jun 2 18:06:49 mostly opendkim[4487]: o52M6i6q030918: dkim_eoh(): resource unavailable: can't create temporary file at /var/tmp/dkim.o52M6i6q030918.P1DRLt: Too many open files Jun 2 18:06:55 mostly opendkim[4487]: o52M6nsN030928: dkim_eoh(): resource unavailable: can't create temporary file at /var/tmp/dkim.o52M6nsN030928.VaxbGW: Too many open files Jun 2 18:06:55 mostly opendkim[4487]: o52M6nCX030929: dkim_eoh(): resource unavailable: can't create temporary file at /var/tmp/dkim.o52M6nCX030929.JOevSs: Too many open files