```
[2014-10-22 16:41:26] ERROR 8: Undefined index: supportsMessageIDHeader at [/home/web/sites/phabricator/phabricator/src/applications/metamta/adapter/PhabricatorMailImplementationTestAdapter.php:78]
#0 PhabricatorMailImplementationTestAdapter::supportsMessageIDHeader() called at [<phabricator>/src/applications/metamta/storage/PhabricatorMetaMTAMail.php:551]
#1 PhabricatorMetaMTAMail::sendNow() called at [<phabricator>/src/applications/metamta/PhabricatorMetaMTAWorker.php:26]
#2 PhabricatorMetaMTAWorker::doWork() called at [<phabricator>/src/infrastructure/daemon/workers/PhabricatorWorker.php:87]
#3 PhabricatorWorker::executeTask() called at [<phabricator>/src/infrastructure/daemon/workers/storage/PhabricatorWorkerActiveTask.php:156]
#4 PhabricatorWorkerActiveTask::executeTask() called at [<phabricator>/src/infrastructure/daemon/workers/PhabricatorTaskmasterDaemon.php:19]
#5 PhabricatorTaskmasterDaemon::run() called at [<phutil>/src/daemon/PhutilDaemon.php:91]
#6 PhutilDaemon::execute() called at [<phutil>/scripts/daemon/exec/exec_daemon.php:111]
```
Many of these in the daemon logs. I'm not sure if this should always return false or what the right thing to do is for the 'does not actually send email' class.