title: MSSQL Mail permission was denied xp_sysmail_activate
body: <p>On MSSQL 2016 I can see error in SQL Server Logs.</p>
  <pre><code>Message
  The activated proc '[dbo].[sp_sysmail_activate]' running on queue 'msdb.dbo.ExternalMailQueue' output the following:
  'The EXECUTE permission was denied on the object 'xp_sysmail_activate', database 'mssqlsystemresource', schema 'sys'.'
  </code></pre>
  <p>Please, where is problem?</p>