- Step : 1On your computer, launch Outlook 2007 by giving a double-click on the Outlook shortcut icon at the desktop.
- Step : 2Click the Tools menu and select Accounts from the drop-down list.
- Step : 3In the pop-up window, click the Email tab and select your account from the displayed list.
- Step : 4On the POP and IMAP Account Settings screen, verify whether you have configured the correct incoming and outgoing server settings.
- Step : 5Verify whether the email address and password that you have entered in the Logon Information section are correct.
- Step : 6Next, click the More Settings button and move to the Outgoing Server tab.
- Step : 7Ensure that you have selected the My outgoing server (SMTP) requires authentication checkbox.
- Step : 8Also, check whether you have enabled the Use same settings as my incoming mail server radio button.
- Step : 9Following that, go to the Advanced tab and enter the server port for a secure connection in the Incoming server field.
- Step : 10Make sure to check the This server requires an encrypted connection (SSL) checkbox.
- Step : 11In the Outgoing server (SMTP) field, enter the port number 465 or 587.
- Step : 12Select SSL or TLS from the drop-down menu next to Use the following type of encrypted connection.
- Step : 13Click the OK button.
- Step : 14Now, you will be redirected to the previous screen.
- Step : 15Click the More Settings button to verify the configured server settings.
- Step : 16If the test fails and the office 365 relay access denied error reappears, check the server settings once again.
- Step : 17Also, make sure that you have disabled the antivirus software on your computer.
- Step : 18Check if your email server or domain is listed as spam.
- Step : 19To do so, open the default browser and navigate to any trusted third-party email blacklist checking site.
- Step : 20Enter your email address in the search panel and click the Blacklist Check button to check if your email has been blacklisted.