How to change 587 port on macbook mac mail

To change the outgoing mail server port on a MacBook using Mac Mail, follow these steps:

  1. Open Mac Mail on your MacBook.
  2. Click on "Mail" in the top menu bar and select "Preferences".
  3. Click on the "Accounts" tab.
  4. Select the email account you want to change the port for from the list on the left.
  5. Click on the "Advanced" tab.
  6. Scroll down to the "Outgoing Mail Server" section.
  7. Click on the "Edit" button next to "Outgoing Mail Server".
  8. In the "Edit Server List" window, select the "SMTP" protocol.
  9. Click on the "Port" dropdown menu and select "Custom Port".
  10. Enter the new port number you want to use (587 in your case).
  11. Click "OK" to close the "Edit Server List" window.
  12. Click "OK" again to close the "Advanced" tab.
  13. Click "OK" to close the "Preferences" window.

Your outgoing mail server port should now be changed to 587.

Note: If you're using a third-party email service, such as Gmail or Outlook, you may need to check their documentation for specific instructions on how to change the outgoing mail server port.