How to change port number on mac mail

To change the port number used by Mail on a Mac, you'll need to modify the settings in the Mail app's preferences. Here's a step-by-step guide:

Method 1: Change the port number for a specific account

  1. Open the Mail app on your Mac.
  2. Click on the "Mail" menu and select "Preferences" (or use the keyboard shortcut Command + comma).
  3. In the Preferences window, select the account you want to modify from the list on the left.
  4. Click on the "Accounts" tab.
  5. Click on the "Advanced" tab.
  6. In the "Incoming Mail Server" section, click on the "Port" dropdown menu and select "Custom Port".
  7. Enter the new port number you want to use (e.g., 587).
  8. Click "OK" to save the changes.

Method 2: Change the port number for all accounts

  1. Open the Mail app on your Mac.
  2. Click on the "Mail" menu and select "Preferences" (or use the keyboard shortcut Command + comma).
  3. In the Preferences window, click on the "Accounts" tab.
  4. Select the "Edit" button next to "Account Settings" at the bottom of the window.
  5. In the "Account Settings" window, click on the "Advanced" tab.
  6. In the "Incoming Mail Server" section, click on the "Port" dropdown menu and select "Custom Port".
  7. Enter the new port number you want to use (e.g., 587).
  8. Click "OK" to save the changes.

Note: If you're using a custom port number, you may need to update your email client's settings on your email provider's website or contact their support team to ensure that the new port number is allowed.

That's it! Your Mail app on Mac should now be using the new port number.