[22-Jan-2016 21:52:29 UTC] #0 <#2> BaseHTTPFuture::parseRawHTTPResponse(string) called at [<phutil>/src/future/http/HTTPSFuture.php:415]
[22-Jan-2016 21:52:29 UTC] #1 <#2> HTTPSFuture::isReady() called at [<phutil>/src/future/Future.php:37]
[22-Jan-2016 21:52:29 UTC] #2 <#2> Future::resolve() called at [<phutil>/src/future/http/BaseHTTPFuture.php:279]
[22-Jan-2016 21:52:29 UTC] #3 <#2> BaseHTTPFuture::resolvex() called at [<phabricator>/src/applications/metamta/adapter/PhabricatorMailImplementationSendGridAdapter.php:145]
[22-Jan-2016 21:52:29 UTC] #4 <#2> PhabricatorMailImplementationSendGridAdapter::send() called at [<phabricator>/src/applications/metamta/storage/PhabricatorMetaMTAMail.php:733]
[22-Jan-2016 21:52:29 UTC] #5 <#2> PhabricatorMetaMTAMail::sendNow() called at [<phabricator>/src/applications/metamta/PhabricatorMetaMTAWorker.php:26]
[22-Jan-2016 21:52:29 UTC] #6 <#2> PhabricatorMetaMTAWorker::doWork() called at [<phabricator>/src/infrastructure/daemon/workers/PhabricatorWorker.php:122]
[22-Jan-2016 21:52:29 UTC] #7 <#2> PhabricatorWorker::executeTask() called at [<phabricator>/src/infrastructure/daemon/workers/storage/PhabricatorWorkerActiveTask.php:171]
[22-Jan-2016 21:52:29 UTC] #8 <#2> PhabricatorWorkerActiveTask::executeTask() called at [<phabricator>/src/infrastructure/daemon/workers/PhabricatorTaskmasterDaemon.php:22]
[22-Jan-2016 21:52:29 UTC] #9 PhabricatorTaskmasterDaemon::run() called at [<phutil>/src/daemon/PhutilDaemon.php:183]
[22-Jan-2016 21:52:29 UTC] #10 PhutilDaemon::execute() called at [<phutil>/scripts/daemon/exec/exec_daemon.php:125]