Reliable Methods to Identify ESP from Prospect Emails in Clay

·Nov 14, 2025 02:34 PM·

What are the good and reliable ways of getting the ESP (Email Service Provider) from prospect's email / domain within Clay? I noticed IcyPeas has it, but it was getting some data points wrong.

2 comments

· Sorted by Oldest

Preeti M.
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Emailguard via HTTP API - free to use
🙏1
Saad A.
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Preeti M. - could you please let me know the role of email guard i just bought this. Also, I'm using an email baison. How can i improve my deliveribility. If you can tell that would be really helpful for me thanks 🙏

Preeti M.
·
·
Emailguard via HTTP API - free to use
🙏1
Saad A.
·
·
Preeti M. - could you please let me know the role of email guard i just bought this. Also, I'm using an email baison. How can i improve my deliveribility. If you can tell that would be really helpful for me thanks 🙏