The authentication method should always be set to "Logon using Secure Password Authentication (SPA)" or standard username/password to match your credentials. Server Address and Port Details For a standard Outlook.
How to Change Your Outlook SMTP Server Settings Step by Step
The critical detail is the port number: use port 587 for STARTTLS encryption, which is the modern standard. com on port 995 for SSL.
Account Settings Menu Begin by opening the desktop client and navigating to File. If you are using a Microsoft 365 business account, the same address applies.
How to Change Your Outlook SMTP Server Settings
While Outlook handles receiving mail (POP3 or IMAP) with relative ease, the sending function relies entirely on connecting to the right remote server. If the test fails, the issue is likely network-level rather than a mistake in your email address or password.
More About How to find my smtp server outlook
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