>>> check !verify = header_syntax
>>> check logwrite = acl_verify_message: '$acl_verify_message'
>>> = acl_verify_message: 'unmatched doublequote in local part: failing address in "Cc:" header begins: "abcd@x.y.z (missing quote),\n longlonglonglonglong@long.long.long.long.long.long.long.long,\n listlistlistlistlist@list.list.list.list.list.list.list.list,\n ofofofofofofofofofof@of.of.of.of.of.of.of.of.of.of.of.of.of,\n addressesaddresses@addresses.addresses.addresses.addresses, \n longlonglonglonglong@long.long.long.long.long.long.long.long,\n listlistlistlistlist@list.list.list.list.list.list.list.list,\n ofofofofofofofofofof@of.of.of.of.of.of.of.of.of.of.of.of.of,\n addressesaddresses@addresses.addresses.addresses.addresses, \n longlonglonglonglong@long.long.long.long.long.long.long.long,\n listlistlistlistlist@list.list.list.list.list.list.list.list,\n ofofofofofofofofofof@of.of.of.of.of.of.of.of.of.of.of.of.of,\n addressesaddresses@addresses.addresses.addresses.addresses, \n longlonglonglonglong@long.long.long.long.long.long.long.long,\n listlistlistlistlist@list.list.list.list.list.list.list.list,\n ofofofofofofofofofof@of.of.of.of.of.of.of.of.of.of.of.of.of,\n addressesaddresses@addresses.addre'
>>> check !verify = header_syntax
>>> check logwrite = acl_verify_message: '$acl_verify_message'
>>> = acl_verify_message: 'unmatched doublequote in local part: failing address in "Cc:" header begins: "abcd@x.y.z (missing quote),\n longlonglonglonglong@long.long.long.long.long.long.long.long,\n listlistlistlistlist@list.list.list.list.list.list.list.list,\n ofofofofofofofofofof@of.of.of.of.of.of.of.of.of.of.of.of.of,\n addressesaddresses@addresses.addresses.addresses.addresses, \n longlonglonglonglong@long.long.long.long.long.long.long.long,\n listlistlistlistlist@list.list.list.list.list.list.list.list,\n ofofofofofofofofofof@of.of.of.of.of.of.of.of.of.of.of.of.of,\n addressesaddresses@addresses.addresses.addresses.addresses, \n longlonglonglonglong@long.long.long.long.long.long.long.long,\n listlistlistlistlist@list.list.list.list.list.list.list.list,\n ofofofofofofofofofof@of.of.of.of.of.of.of.of.of.of.of.of.of,\n addressesaddresses@addresses.addresses.addresses.addresses, \n longlonglonglonglong@long.long.long.long.long.long.long.long,\n listlistlistlistlist@list.list.list.list.list.list.list.list,\n ofofofofofofofofofof@of.of.of.of.of.of.of.of.of.of.of.of.of,\n addressesaddresses@addresses.addre'