How to amend your SMTP port in Microsoft Outlook 2010

Some Internet Service Providers (or ISPs) will routinely block sending mail on the default port 25. To remedy this simply follow the Steps listed below to take you through the process of changing your port to 587 which will allow mail to be sent.

If you would prefer to watch a video on Once you have successfully followed the steps above you should be able to send mail via the outgoing mail server without being blocked by your Internet Service Provider. Click here.

Step 1. Start Microsoft Outlook 2010 then select File, find and select Account Settings, then Account Settings

How to amend your SMTP port in Microsoft Outlook 2010 start

Step 2. Highlight the corresponding account you want to make changes to the outgoing port for and select Change

Screenshot of the Account Settings window in an email client. A red arrow points to an email address "mail.yourdomainname.com" listed under the E-mail tab. The Type is indicated as POP/SMTP (send from this account by default). This tool, useful for web design in Horsham, also features tabs for Data Files, RSS Feeds, and more.

Step 3. Now click on More Settings

Screenshot of the "Change E-mail Account" settings window. The form displays fields for user name, email address, server information, and login details. A red arrow points to the "More Settings..." button in the bottom right. This interface exemplifies thoughtful web design in Horsham.

Step 4. Select the Advanced Tab in the top menu, change the Out Going Server Port to 587 and then click OK

A screenshot of the Internet E-mail Settings window, highlighting the Connection tab, is provided. It shows server port numbers (POP3: 110, SMTP: 587), and options for encrypted connections (SSL). Arrows point to the SMTP setting, the checkbox for SSL, and the OK button—vital details for web design in Horsham.

Step 5. Click next

Screenshot of the "Change E-mail Account" window in an email client, showcasing user information, server details, and logon credentials. A red arrow at the bottom right directs users to the "Next" button. This user-friendly interface is a great example of effective web design in Horsham.

Step 6. Checking it works – Outlook 2010 will test your settings and once complete, click Close

A "Test Account Settings" window displays a confirmation message: "Congratulations! All tests completed successfully. Click Close to continue." A red arrow points to the "Close" button. Below, two tasks are listed as completed: "Log onto incoming mail server (POP3)" and "Send test e-mail message," showcasing efficient web design in Horsham.

Step 7. Click finish

A screenshot of an email account setup completion page in a web design in Horsham project. The message reads, "Congratulations! You have successfully entered all the information required to setup your account. To close the wizard, click Finish." A red arrow points to the "Finish" button at the bottom.

Step 8. Once finished, Click close

Screenshot of the Account Settings window in an email client. It lists an email account, "mail.yourdomainname.com," set as default and using POP/SMTP. A red arrow points to the "Close" button at the bottom right corner, ensuring even those focusing on web design in Horsham can easily navigate.

How to amend your SMTP port in Microsoft Outlook 2010

Once you have successfully followed the steps above you should be able to send mail via the outgoing mail server without being blocked by your Internet Service Provider.