Setting up POST email in Outlook

ByDavid Morais
POST Luxembourg email
Microsoft Outlook for Windows

Since 23 January 2024, POST Luxembourg has been gradually phasing out unsecured connections on its platforms, including POST email. In this article, we will see how to change the POP3/IMAP and SMTP settings in Outlook to use a secure connection (SSL/TLS) with login credentials.

If your POST email no longer works in Outlook, it is quite possible that your configuration no longer matches the new settings required by POST Luxembourg.

To check and configure Outlook, follow these steps:

  1. Press the ” Windows ” + ” R ” keys.
  2. In the window that opens, type ” outlook.exe /manageprofiles “.
  3. Confirm by clicking the ” OK ” button or by pressing the ” Enter ” key on your keyboard.
  4. Click ” Yes ” if Windows asks for permission to make changes.
  5. In the ” Mail Setup - Outlook ” window, click the ” E-mail Accounts… ” button
  6. In the ” Account Settings ” window, double-click the email account you want to change.
  7. Click the ” More Settings … ” button
  8. In the ” Internet E-mail Settings ” window, click the ” Outgoing Server ” tab.
  9. Tick the ” My outgoing server (SMTP) requires authentication ” box.
  10. Then click the ” Advanced ” tab.
  11. Make sure that port ” 993 ” (IMAP) or ” 995 ” (POP) is entered in the box next to ” Incoming server (IMAP) ” or ” Incoming server (POP3) “.
  12. Make sure that ” SSL/TLS ” is selected next to ” Use the following type of encrypted connection “.
  13. Make sure that port ” 587 ” is entered in the box next to “Outgoing server (SMTP)”.
  14. Make sure that ” STARTTLS ” is selected next to ” Use the following type of encrypted connection “.
  15. Confirm the configuration by clicking the ” OK ” button.
  16. Confirm the configuration and the configuration test by clicking the ” Next > ” button in the ” Change Account ” window.
  17. In the next window, ” Test Account Settings “, wait for the configuration test to run and complete successfully.
  18. Click the ” Finish ” button in the ” Change Account ” window.
  19. Click the ” Close ” button in the ” Account Settings ” window.
  20. Click the ” Close ” button in the ” Mail Setup - Outlook ” window.
  21. Finally, open Outlook and check that your email is working properly by sending an email to yourself.
Windows + R
Windows, Run
Windows permission request
Mail Setup - Outlook
Account Settings, Outlook
Internet E-mail Settings, Outgoing Server
Internet E-mail Settings, Advanced
Change Account, Outlook
Test Account Settings, Outlook
Change Account, Outlook
Mail settings, Outlook
Mail Setup - Outlook

Still stuck in Outlook?

If Outlook still refuses to send or receive, tell us at which step you are stuck. IAV sets up your email remotely or on site in Luxembourg as part of its IT repair service. Write to us using the contact form, and take a look at our prices.

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our sources:
https://support.pt.lu/email-client-configuration-pt-lu/
https://learn.microsoft.com/fr-fr/outlook/troubleshoot/user-interface/incorrect-folder-names