How to Check Who Your Email Service Provider (ESP) Is?

Your daily sending limit depends on the Email Service Provider (ESP) connected to your domain. That’s why it’s important to know which ESP you’re using.

Here’s a simple way to find it:

Steps to identify your ESP:

1. Visit mxtoolbox.com
   

2. Type your domain name into the search bar
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3. Hit Enter or click "MX Lookup"
   

4. You’ll instantly see details about your domain, including the ESP handling your emails

There, you can find your email service provider. In this case, the email service provider is "Microsoft Office".

That’s it! You can set daily sending limits as per your ESP.