2) BigData Phone & Email Verification Package

The BigData Phone & Email Verification Package allows for global verification of phone numbers and email addresses, ensuring data accuracy and integrity through non-intrusive methods.
API Features
- Fast Response Time: The API provides a sub-millisecond response time, ensuring quick verification processes.
- Malicious Email Check: Identifies and flags email domains and accounts known for abusive behavior, helping to prevent spam and fraud.
- Ethical Approach: Ensures that the verification process is safe and reliable, avoiding any methods that could compromise data integrity or security.
BigData Phone & Email Verification Package Pricing
- Base: Up to 1,000 queries per month. Once the monthly quota is hit, the API will return errors until the start of the next month unless the package is upgraded.
- Bronze: Up to 10,000 queries per month. $9.95 per additional 10,000 monthly requests. PAY AS YOU GO option available for uninterrupted service.
- Silver: Up to 100,000 queries per month. $7.99 per additional 10,000 monthly requests. PAY AS YOU GO option available for uninterrupted service.
- Gold: Up to 1,000,000 queries per month. $6.49 per additional 10,000 monthly requests. PAY AS YOU GO option available for uninterrupted service.
3) Breadcrumbs

Breadcrumbs offers a free email verification tool designed to help users maintain data hygiene by verifying email addresses in their contact lists, ensuring that only valid and deliverable emails are kept.
API Features
- Verify Single Email: Instantly check the validity of a single email address without storing any data.
- Keep it Clean: Remove spam traps and undeliverable emails to avoid unnecessary charges from CRM or marketing automation systems.
- Bad Reputation: Maintain a clean list to ensure emails land in inboxes, protecting sender reputation from high bounce rates and spam traps.
Breadcrumbs Pricing
- Verify Single Email: Users can insert an email address to get an instant score. The tool does not store the data provided.
- Verify Email List: Users can upload a contact list to see its health score. The tool does not store the data provided.
- Integration with HubSpot: Users can connect their HubSpot account, pick a list with up to 10,000 contacts, and wait for the results.
- Free Tool: The email verification tool is advertised as free with no mention of different pricing tiers.
- Contact Support: For more detailed information or specific needs, users may need to contact Breadcrumbs support.
4) Informatica Email Verification

Informatica Email Verification ensures that email addresses in your customer database are accurate and safe by validating them directly with the domain. It employs a four-step process and self-learning algorithms to eliminate malicious threats and improve email deliverability.
API Features
- Immediate Email Verification: Validates email addresses on the spot using a four-step process, ensuring accuracy by checking directly with the domain.
- Elimination of Malicious Threats: Utilizes self-learning algorithms to identify and flag email domains associated with spam networks and other threats.
- Improvement of Delivery Rates and Reputation: Enhances email deliverability and protects sender reputation by confirming the validity of trustworthy email addresses.
Informatica Email Verification Pricing
- Base: Up to 1,000 queries per month. Once the monthly quota is hit, the API will return errors until the start of the next month unless the package is upgraded.
- Bronze: Up to 10,000 queries per month. $9.95 per additional 10,000 monthly requests. PAY AS YOU GO option available for uninterrupted service.
- Silver: Up to 100,000 queries per month. $7.99 per additional 10,000 monthly requests. PAY AS YOU GO option available for uninterrupted service.
- Gold: Up to 1,000,000 queries per month. $6.49 per additional 10,000 monthly requests. PAY AS YOU GO option available for uninterrupted service.
- Informatica Email Verification's pricing is not public. Contact their support for more info.
5) NeverBounce

NeverBounce provides real-time email verification to ensure the accuracy of customer data, instantly checking and validating email addresses as they are submitted to prevent fake or invalid entries from getting into databases.
API Features
- Real-time Email Verification: Instantly checks and validates email addresses as they are submitted, preventing fake or invalid entries from getting into databases.
- Proprietary 20+ Step Cleaning Process: Verifies each email up to 75 times across multiple global servers for unmatched accuracy.
- Multiple Connection Methods: Offers integration options including a dashboard, custom API, JavaScript widget, and Zapier for flexible email verification.
NeverBounce Pricing
- Pay for What You Use: Customers can pick the credit amount they need and pay only for that. The minimum purchase is 1,000 credits.
- Custom Amounts of Credits: Allows for the insertion of custom amounts of credits.
- Integrations: Ability to integrate with over 80 platforms.
- Advanced Features: Tailored to scale with business needs. Dedicated account management and priority support.
- NeverBounce's pricing is not public. Contact their support for more info.
What to Consider When Selecting a Dev.me Mailbox Verification Alternative?
- Real-time Verification: Ensures email addresses are validated instantly, preventing fake or invalid entries from entering your database.
- Compliance with Privacy Regulations: Adheres to GDPR, CCPA, and other privacy laws to protect user data and maintain trust.
- Detection of Disposable and Free Email Providers: Identifies and filters out email addresses from disposable and free providers to maintain data quality.
- Integration Options: Offers multiple connection methods such as API, JavaScript widget, and third-party integrations for seamless integration into existing systems.
- Comprehensive Syntax and Domain Checks: Validates email syntax and checks domain configurations to ensure the accuracy and deliverability of email addresses.
Which One Should You Go With?
Each of the email verification services discussed offers unique features and benefits, making them all viable options depending on your specific needs. Whether you prioritize real-time verification, privacy compliance, or integration flexibility, there's a solution that fits your requirements.
If you're looking for a robust alternative, we recommend signing up with Abstract API. With its comprehensive validation techniques, privacy-friendly approach, and easy integration, Abstract API stands out as a reliable choice for maintaining the accuracy and integrity of your email lists.