Microsoft outlook will not connect to telstra web mail

Configure and verify the Telstra SMTP settings in Outlook, then check for any network or authentication blocks.

1. Confirm Internet and Outlook connectivity

• Make sure Windows has Internet access (open a few websites in a browser).
• In Outlook, go to Send/Receive and confirm it is not set to Work Offline.

2. Verify SMTP authentication is enabled Many POP/IMAP accounts require authentication on the outgoing (SMTP) server. If this is not enabled, the server will reject the account.

In Outlook for Windows (classic):

1. Go to File > Account Settings > Account Settings….
2. Select the Telstra email account and click Change….
3. Click More Settings….
4. Go to the Outgoing Server tab.
5. Check My outgoing server (SMTP) requires authentication.
6. Select Use same settings as my incoming mail server (unless Telstra specifies different credentials).
7. Select OK, then Next to test the account settings.

If the test fails on SMTP, re‑enter the email address and password carefully and test again.

3. Confirm SMTP server name, port, and encryption If the SMTP server name, port, or encryption type is wrong, the server can fail to recognize the account. Check Telstra’s current settings (server name, port, SSL/TLS requirement) on their support site, then in Outlook:
4. In Change Account > More Settings… > Advanced tab.
5. Under Outgoing server (SMTP), enter the Telstra SMTP server name and port exactly as Telstra documents.
6. Set the correct Encrypted connection type (for example, SSL/TLS or STARTTLS) as required by Telstra.
7. Check for firewall/ISP blocks If the network or ISP blocks the SMTP port, Outlook cannot reach the server and may show authentication or connection errors.

• Temporarily disable any third‑party firewall/security software and test again.
• If using a work or shared network, ask the network admin/ISP if SMTP ports for Telstra are blocked and if an alternative SMTP port or server is available.
• If Telstra provides an alternate SMTP server or port, configure it in Account Settings > More Settings… > Advanced.

5. Recreate the account in Outlook If settings are correct but SMTP still fails:
6. In File > Account Settings > Account Settings…, remove the Telstra account.
7. Add it again using the manual setup option so that IMAP/POP and SMTP details can be entered exactly as Telstra specifies.
8. If the problem persists

• Contact Telstra support to confirm:
  • The mailbox is active and not blocked.
  • The correct SMTP server, port, and security settings.
  • Whether there are any recent changes to authentication (for example, app passwords or OAuth) that affect Outlook.

References:

• I can't send or receive messages with Outlook for Mac
• Error: SMTP Invalid Server Info
• Error: SMTP Autodiscover Failed
• Fix Outlook connection problems for Microsoft 365 account