Welcome To Our

Email Blacklist API

Below you can see some Email Blacklist API functionalities.

Number 1 icon

Email Blacklist API documentation

In the link below you can access API documentation for our Email Blacklist API. There you will find information about Authentication, setting up input request, status codes and their description.

Number Two Icon

Email Blacklist API code examples

Our Email Blacklist API is a restfull web API. Requests are done over HTTP or HTTPS, so it doesn’t matter if your application is written in PHP, Javascrpipt, Ruby, Python, Objective C, .NET or any other programming language.

Number Three Icon

How to use our Email Blacklist API

Using WhoAPI’s Email Blacklist API is similar to using our other APIs. The only difference is you can check both a domain name, or an IP address. So if you are a hosting company with hundreds of IP addresses, or a email marketing company with thousands of them, our email blacklist API can tell you when an IP adress or a domain name gets blacklisted by one of the major RBL blacklists.

Number 4 Icon

Email Blacklist API use case

Every day, billions of emails are sent. Not thousands. Not millions. Billions! It’s hard for any software or system to automatically or programmatically detect if a message is spam or a genuine important email message from one person to another. So there are a lot of false positives, and there are companies that get blacklisted just because of a bad neighborhood.

Oliver Keyes headshot

WhoAPI provides a tremendously valuable service – machine-readable WHOIS data! We’re using it for automatic checks of domain squatting around our trademarks.

Wikimedia

Oliver Keyes

Startups
Monthly
$ 56
100,000 requests / month
  • JSON or XML API output
  • Check domain name for email blacklist
  • Check IP address for email blacklist
  • Money-back guarantee
  • Console
  • Priority support
  • Payable by credit card, wire, ACH, Link or G-Pay
  • Good for startups
Business
Monthly
$ 141
300,000 requests / month
  • JSON or XML API output
  • Check domain name for email blacklist
  • Check IP address for email blacklist
  • Money-back guarantee
  • Console
  • Priority support
  • Payable by credit card, wire, ACH, Link or G-Pay
  • Good for businesses
Enterprise
Monthly
$ 352
1,000,000 requests / month
  • JSON or XML API output
  • Check domain name for email blacklist
  • Check IP address for email blacklist
  • Money-back guarantee
  • Console
  • Priority support
  • Payable by credit card, wire, ACH, Link or G-Pay
  • SLA
  • Enterprise
Holding
Monthly
$ 999
Unlimited requests / month
  • JSON or XML API output
  • Check domain name for email blacklist
  • Check IP address for email blacklist
  • Money-back guarantee
  • Console
  • VIP support
  • Payable by credit card, wire, ACH, Link or G-Pay – NET 30
  • SLA
  • Holding

Promotion

Get 10,000 API requests!

For new users only. You don’t need a credit card. 30 days. Your first API request as soon as you signup.