2) Interzoid Email Address Information API

The Interzoid Email Address Information API provides validation information for email addresses to aid in deliverability and prevent sending to bad addresses. It also offers additional demographic and descriptive data useful for marketing and segmentation purposes.
API Features
- Email Validation: Verifies the syntax of the email address and checks the existence of the mail server to ensure deliverability.
- Enrichment Data: Provides additional B2B demographic and categorization information, including details such as descriptions, revenue, number of employees, and location data.
- Spam List Prevention: Helps avoid sending emails to bad addresses, preventing the sender from being placed on spam lists.
Interzoid Email Address Information API Pricing
- Pay-as-you-go: $20 startup fee with usage-based billing. First 1000 API calls included, then $0.0125 per API call.
- 10K Credits: $99/month for 10,000 API calls. Additional calls cost $0.01 each, and credits reset monthly.
- 50K Credits: $299/month for 50,000 API calls. Additional calls cost $0.006 each, and credits reset monthly.
- 250K Credits: $999/month for 250,000 API calls. Additional calls cost $0.004 each, and credits reset monthly.
- 1 Million Credits: $2,999/month for 1 million API calls. Additional calls cost $0.003 each, and credits reset monthly.
3) Email-Verify.My-Addr

Email-Verify.My-Addr offers a comprehensive suite of tools and APIs for email verification, ensuring the accuracy and deliverability of email addresses across various platforms.
API Features
- Verification Coverage: Verify email accounts on more than 95% of email services.
- Pay Per Result: Users only pay for successful verifications, with pricing ranging from $0.26 to $0.13 per 1000 requests.
- Anti-Greylisting Feature: Available for bulk email verification to improve speed and accuracy.
Email-Verify.My-Addr Pricing
- 0-200,000 emails: Basic tier for small volume users, priced at $0.26 per 1000 emails.
- 200,000-500,000 emails: Mid-tier for moderate volume users, priced at $0.20 per 1000 emails.
- 500,000-5,000,000 emails: High-tier for large volume users, priced at $0.14 per 1000 emails.
- 5,000,000+ emails: Premium tier for very large volume users, priced at $0.13 per 1000 emails.
- Pay Per Result: Users only pay for successful verifications, with pricing ranging from $0.26 to $0.13 per 1000 requests.
4) EmailOversight Email Validation

EmailOversight Email Validation offers a multi-method validation approach that combines real-time email verification and email hygiene to ensure high deliverability and eliminate threats like spamtraps, complainers, bots, and litigators.
API Features
- Email Hygiene + Real-Time Email Verification: Combines real-time email verification with email hygiene to identify and eliminate email threats such as hard bounces, spamtraps, complainers, bots, and litigators.
- Multi-Method Validation Approach: Uses a combination of real-time verification and email hygiene to clean emails more effectively, improving deliverability and engagement rates.
- High Accuracy Rate: Claims a 99.5% accuracy rate in email validation, ensuring quick and reliable results.
EmailOversight Email Validation Pricing
- Up to 10k: Advanced Email Validation for $70/month.
- Up to 25k: Advanced Email Validation for $125/month.
- Up to 100k: Advanced Email Validation for $400/month.
- Up to 250k: Advanced Email Validation for $750/month.
- Up to 1MM: Advanced Email Validation, pricing requires contacting support.
5) Dilli Labs Email Validation API

The Dilli Labs Email Validation API offers real-time validation of email addresses, ensuring accuracy by checking format, MX records, and detecting disposable and spam email addresses. It helps prevent spam submissions, warns users of mistyped addresses, and cleans up mailing lists, making it an essential tool for maintaining data quality.
API Features
- ESP Grammar Rules: Incorporates specific grammar rules of various email service providers to ensure compliance and accuracy.
- Profanity Check: Scans email addresses for profanities and marks them as invalid if any are found.
- Custom Blacklist and Whitelist: Allows users to block or whitelist specific domains, top-level domains, or email addresses based on their unique requirements.
Dilli Labs Email Validation API Pricing
- Free 100 validations upon signing up: Users get 100 free email validations when they sign up.
- After that, 1/2 a cent per validation: Each subsequent validation costs 1/2 a cent after the initial 100 free validations.
What to Consider When Selecting a Elastic Email Alternative?
- Email Validation Accuracy: Ensure the service offers high accuracy in validating email addresses to improve deliverability and reduce bounce rates.
- Real-Time Verification: Look for real-time verification capabilities to instantly check email addresses as they are entered, preventing invalid entries.
- Data Enrichment: Choose a service that provides additional demographic and categorization data to enhance marketing efforts and segmentation.
- Compliance and Security: Verify that the service complies with privacy regulations like GDPR and CCPA and uses encryption to protect data.
- Scalability and Performance: Opt for a solution that can handle large volumes of email verifications quickly and efficiently, ensuring it can grow with your needs.
Which One Should You Go With?
Each of the email validation services discussed offers unique features and pricing structures, making them suitable for different needs and budgets. Whether you prioritize real-time verification, data enrichment, or compliance, there's a solution that fits your requirements.
If you're looking for a reliable and comprehensive alternative, we recommend signing up with Abstract API. With its high accuracy, scalability, and robust support, Abstract API stands out as a top choice for ensuring email deliverability and maintaining data quality.