diff --git a/src/applications/metamta/garbagecollector/MetaMTAMailSentGarbageCollector.php b/src/applications/metamta/garbagecollector/MetaMTAMailSentGarbageCollector.php
index f6df18bef6..99103a2f2e 100644
--- a/src/applications/metamta/garbagecollector/MetaMTAMailSentGarbageCollector.php
+++ b/src/applications/metamta/garbagecollector/MetaMTAMailSentGarbageCollector.php
@@ -1,20 +1,20 @@
 <?php
 
 final class MetaMTAMailSentGarbageCollector
   extends PhabricatorGarbageCollector {
 
   public function collectGarbage() {
     $ttl = phutil_units('90 days in seconds');
 
     $mails = id(new PhabricatorMetaMTAMail())->loadAllWhere(
       'dateCreated < %d LIMIT 100',
-      PhabricatorTime::getNow());
+      PhabricatorTime::getNow() - $ttl);
 
     foreach ($mails as $mail) {
       $mail->delete();
     }
 
     return (count($mails) == 100);
   }
 
 }