How to Find My SMTP Server IP Address?

To send emails programmatically or troubleshoot email delivery, you may need to know the IP address of your SMTP (Simple Mail Transfer Protocol) server. Here are a few methods to find your SMTP server's IP address across different platforms:

1. Check Your Email Client Settings

If you're using an email client like Outlook, Thunderbird, or Apple Mail, the SMTP server details are usually available in the account settings.

1. Outlook (Windows or Mac):

• Go to File > Account Settings > Manage Profiles.

• Select your email account, then choose Change.

• Under Outgoing Server (SMTP), you'll find the SMTP server address.

2. Apple Mail (Mac):

• Open Mail > Preferences.

• Select the Accounts tab, choose your account, and check Server Settings to find the SMTP server address.

3. Thunderbird:

• Go to Account Settings > Outgoing Server (SMTP).

• Your SMTP server details are listed there.

2. Use the Command Line to Find SMTP IP Address

If you already know your SMTP server's hostname (e.g., smtp.yourdomain.com), you can use the following commands to find the IP address associated with it.

On Windows

1. Open Command Prompt (cmd).

2. Use the ping or nslookup command:
   
   

           or

3. The command output will display the IP address of your SMTP server.

On macOS or Linux

1. Open Terminal.

2. Use the nslookup or ping command similarly:
   
   

or

3. Access Web Hosting Control Panel (cPanel or Plesk)

If your email is hosted on a web server with a control panel, you can typically find the SMTP details there.

cPanel:

• Log in to your cPanel dashboard.

• Under the Email section, go to Email Accounts or Email Routing.

• Select Connect Devices or Account Details, where you'll find the outgoing server information, including the SMTP IP address.

Plesk:

• Log in to your Plesk control panel.

• Navigate to Mail and select Mail Settings.

• Here, the SMTP server details, including IP addresses, are listed.

4. Contact Your Email Service Provider

If the above methods don't work or if you're using a third-party email service like Gmail, Yahoo, or Office 365, you can contact their support for SMTP IP details, or refer to their documentation.

5. Use Online DNS Lookup Tools

If you know your SMTP hostname, you can also use an online DNS lookup tool to find its IP address:

1. Go to a DNS lookup website like MXToolbox or WhatsMyDNS.net.

2. Enter your SMTP server hostname (e.g., smtp.yourdomain.com) and select A Record or MX Lookup.

3. The result will show your SMTP server's IP address.

By following these methods, you should be able to identify the IP address of your SMTP server accurately.

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