Bulk Email Checker

Email list validator tool

Validate up to 1000 email addresses at once with our bulk email checker and export results

Bulk Validation

Upload a file or paste a list of email addresses

0 emails entered

Bulk Validation Features

File Upload

Support for .txt files and multi-column .csv files with column selection

Paste List

Simply paste a list of email addresses in the text field

Export Results

Download results in CSV format for further analysis

Detailed Statistics

Complete statistics on valid and invalid email addresses

Security

All validations are performed locally, data is not stored

Fast Processing

Optimized processing of up to 1000 email addresses

Real-time Progress

Live progress bar showing validation status and speed

Bulk Email Validation Guide

Bulk email validation is essential for businesses and organizations that manage large email lists. It helps identify invalid, inactive, or non-existent email addresses before sending campaigns, improving deliverability rates and protecting your sender reputation.

Why use bulk email validation?

  • Improve deliverability: Remove invalid addresses that could harm your sender reputation
  • Save costs: Avoid sending emails to non-existent addresses
  • Better engagement: Focus on valid addresses for higher open rates
  • Compliance: Maintain clean lists for GDPR and other regulations

Supported file formats

Text files (.txt)

One email address per line

CSV files (.csv)

Multi-column CSV with column selection

Processing limits and recommendations

Maximum 1000 emails per batch - For optimal performance and accuracy
Processing time: Approximately 1-2 seconds per email address
Export results: Download CSV file with detailed validation results

Best practices for bulk validation

1
Clean your data first: Remove duplicates and format emails properly
2
Validate regularly: Check your lists every 3-6 months for best results
3
Monitor results: Track validation rates to identify data quality issues
4
Use for campaigns: Focus on valid addresses for better engagement rates

Understanding validation results

✅ Valid Emails

Passed all validation checks and can receive emails

❌ Invalid Emails

Failed one or more validation checks