Abstract Email Validation
Validate email addresses for deliverability and spam.
About Abstract Email Validation
Abstract Email Validation is a REST API that verifies email addresses in real time. A single request checks address format, MX record presence, live SMTP deliverability, and flags disposable or catch-all domains, returning a structured JSON response that includes a quality score and deliverability status. Typical response time is under 300ms, and the API is designed for high-volume use without requiring an email service provider.
It integrates with tools including Zapier, Salesforce, HubSpot, Mailchimp, Shopify, Snowflake, AWS, GCP, and Azure, among others. The service is aimed at developers building signup forms, cleaning email lists, or verifying B2B leads to reduce bounce rates. It offers a free tier of 100 requests per month with no credit card required, and states SOC 2 Type II and GDPR compliance along with a 99.99% uptime SLA.
Key features
- Real-time email format, MX record, and SMTP deliverability checks in one API call
- Disposable and catch-all email detection
- Typo checking with smart suggestions
- Quality score for decisioning each email
- Full JSON response returned in under 300ms
- Integrates with tools like Zapier, Salesforce, Shopify, Mailchimp, HubSpot, AWS, and GCP
Frequently asked questions
Is there a free tier?
Yes, the API offers 100 free requests per month with no credit card required.
What does the API check?
It verifies email format, confirms MX records, runs a live SMTP check without sending a message, and flags disposable and catch-all addresses.
How fast is the response?
A full validation response, including SMTP verification and quality score, returns in under 300ms.
What integrations are supported?
Abstract integrates with tools like Zapier, Splunk, Snowflake, Shopify, Salesforce, Mailchimp, HubSpot, AWS, GCP, and more.
Is it compliant with data privacy regulations?
Yes, it is SOC 2 Type II and GDPR ready, and privacy friendly for GDPR and CCPA compliance.
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