Make Sure your Emails are SafeToSend® with Enterprise-Grade Email Verification & Hygiene

If email campaigns are critical to your organization, you need more than a syntax check or mailbox ping to ensure data quality. SafeToSend®'s advanced email hygiene provides proprietary mailbox verification, unsurpassed B2B mailbox efficacy, SOC 2 compliant systems, and the deepest and most accurate spamtrap & honeypot data, maintained by a dedicated research team leveraging our battle-tested fingerprinting tech.

Trusted by 25% of the Fortune 500, every SafeToSend® account is assigned an account manager to help you understand your data, your results, and how to best invest in and protect your first party customer data.

SafeToSend® emails are 100% guaranteed safe, deliverable addresses that drive higher response rates, conversions and profits.

Reach out to the AtData team


SMTP and proprietary mailbox verification

correct errors

Syntax and typo correction

anonymous user

Enhanced B2B email verification

remove toxic emails

Advanced SpamTrap detection

align channels

Custom filtering


A dedicated email address expert Account Manager

sync data base

Access to ESP and data platform integrations

mail offers

100% STS Deliverability Guarantee

How to Make Your Emails SafeToSend®

Correct typos, avoid blocklists and improve email deliverability by removing bouncing email addresses, disposable domains, and toxic-but-deliverable spam traps and honeypots.


Managed Batch Project Based

Clean your email list using the expert knowledge of the most experienced and dedicated team in the industry.

Managed Service is perfect for:

  • Projects that require the insight of a dedicated project manager and expert data engineers
  • One-time runs and projects with special requirements
batch emails

Automated Batch

Fast & easy cleaning for frequent projects. Clean your email lists 24/7 via SFTP, API or our website. Perform routine data cleanup in minutes.
Automated Batch is perfect for:
  • Cleaning new collected emails
  • Preparing lists for campaigns
  • Routine existing data cleanup


Block problematic addresses at the point-of-entry and correct registration errors in milliseconds.

Real-Time is perfect for:

  • CRM and POS systems
  • Client-side integrations
  • Web-based forms
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Talk with an Email Expert