Fix Outlook Cannot Connect to SMTP Server Error - Fix PowerShell 504 Gateway Timeout in Azure Function Apps-How to Fix Task Scheduler DNS Error

Updated 2026-06-14 01:38:07cloud-software
Fix Outlook Cannot Connect to SMTP Server Error - Fix PowerShell 504 Gateway Timeout in Azure Function Apps-How to Fix Task Scheduler DNS Error
Before changing system settings, save your work and note the exact error text so you can compare results after each step.

Extra verification checklist

  • Restart the affected app after changing permissions or configuration files.
  • Test the same workflow in a clean browser profile or a temporary user account.
  • Compare the result on another network if the error may be connection related.