Fix sending issues in Microsoft Outlook using steps below:

  1. Click File.
    File Menu in Outlook 365, 2019 and 2016
  2. Select your Ecenica email account from the drop-down list then click Account Settings > Server Settings…
    Outlook 365, Outlook 2019, Outlook 2016 Server Settings
  3. Click Outgoing mail
  4. Check the following Outgoing mail settings are set in Outlook:
    • Server:, replacing with your domain name.
    • Port: 465
    • Encryption method: SSL/TLS
    • Require login using Secure Password Authentication (SPA): Unchecked
    • My outgoing (SMTP) server requires authentication: Use same settings as my incoming mail server
      Office 365, Outlook 2019, Outlook 2016 Outgoing mail settings
  5. Click Next
  6. Click Done