How to change outgoing mail server port on imac

To change the outgoing mail server port on an iMac, you'll need to modify the settings in your email client or in the Mail app on your Mac. Here are the steps for the most popular email clients:

Mail App (built-in on Mac)

1. Open the Mail app on your iMac.
2. Click on "Mail" in the top menu bar and select "Preferences" (or use the keyboard shortcut Command + Comma).
3. Click on the "Accounts" tab.
4. Select the email account you want to modify from the list on the left.
5. Click on the "Advanced" tab.
6. Under "Outgoing Mail Server (SMTP)", click on the "Edit" button next to "Port".
7. Enter the new port number you want to use (e.g., 587 or 2525).
8. Click "OK" to save the changes.

Other Email Clients

If you're using a third-party email client like Microsoft Outlook, Mozilla Thunderbird, or Apple Mail (formerly known as Mail.app), the steps may vary slightly. Here are some general instructions:

1. Open your email client and go to the "Account Settings" or "Preferences" section.
2. Select the email account you want to modify.
3. Look for the "Outgoing Mail Server (SMTP)" or "SMTP Server" settings.
4. Click on the "Edit" or "Configure" button next to the SMTP server settings.
5. In the "Port" or "Port Number" field, enter the new port number you want to use (e.g., 587 or 2525).
6. Save the changes.

Common Port Numbers

Here are some common port numbers you might need to use:

• 25: The default port number for SMTP (Simple Mail Transfer Protocol).
• 587: A common alternative port number for SMTP, often used for secure connections.
• 2525: Another alternative port number for SMTP, sometimes used for specific email services or configurations.

Remember to check with your email provider or the recipient's email provider to ensure that the new port number you choose is compatible with their systems.