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How to Know Who Is My Email Service Provider

Identify your email service provider using MX lookup tools.

P Priya Singh · Last updated

Overview

Your email sending limit depends on your Email Service Provider (ESP), so it is essential to know which provider you are using.

Find Your ESP

  1. Go to Mxtoolbox.com.
  2. Enter your domain name or email address in the search box.
  3. Press Enter or click MXLookup.

Email sender showing detected ESP and provider information

The results will provide all necessary information regarding your domain and your Email Service Provider.

Interpreting MXToolbox Results

After running the MXLookup, look for the following indicators:

  • MX Records: These show which servers handle email for your domain. Common server names include:

    • Google / Gmail: Servers containing google.com, gmail.com, or googlemail.com
    • Microsoft / Outlook: Servers containing outlook.com, hotmail.com, or protection.outlook.com
    • Zoho: Servers containing zoho.com
    • AWS / Amazon SES: Servers containing amazonaws.com

  • SPF Record: Look for include: statements that reveal your email infrastructure provider.

If you are unsure after reviewing the results, contact your IT team or the company that set up your domain email.

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