Alternate Email File

Expand Recognition. Improve Resolution.

Identity is rarely static. People shift between inboxes throughout their lives. Old ones, work ones, shopping-specific ones. A single consumer may scatter their digital presence across three, five, or even ten different addresses, each used for distinct interactions.

Marketing systems, CRMs, CDPs, and analytics stacks often treat each of those addresses as a separate person. They’re not.

They’re one customer, fragmented across your data. And when your systems can’t piece that together, you lose more than visibility. You lose opportunities.

AtData’s Alternate Email File is built to solve this. With over two billion verified alternate email relationships, mapped at the individual and household level, it reveals what traditional identifiers miss. It connects records that belong together, strengthens resolution across devices and platforms, and gives you a richer, truer view of the person behind the profile.

This isn’t just about increasing match rates. It’s about rethinking what it means to know your customers.

When One Email Isn’t Enough

Even the cleanest data can falter when it leans on a single point of recognition. People change. They abandon inboxes, open new ones, or compartmentalize by context. And every time they do, your identity graph loses a little clarity. That’s where the Alternate Email File steps in. It lets you:

• Link disparate records that share a common identity
• Recognize high-value customers even when they show up differently
• Reconnect with audiences who’ve gone dark on one email but are active on another
• Power more reliable personalization, attribution, and risk modeling

What’s Inside the File

At the core of this offering is AtData’s unparalleled alternate email graph, structured for scale and precision. Each record is engineered for practical integration, informed by deep expertise in email-based identity.

• 2+ billion alternate email address relationships
• Mapped at the individuals and household level
• Includes both known and probabilistic pairings
• Designed for stitching, deduplication, and resolution
• Standardized formatting for ease of use

Smarter Systems, Sharper Outcomes

The Alternate Email File works quietly but powerfully across your ecosystem. It isn’t a plug-in or a patch. It’s fuel for better decisioning across critical functions.

• Enrich Identity Graphs

  Fill in the missing links. Connect unmatchable records to form unified profiles that travel across campaigns and channels.

• Reduce Duplicates in CRMs and CDPs

  Clean up redundancies. See when different records belong to the same person, even if they use different emails.

• Improve Attribution & Analytics

  Measure more accurately. Ensure that different touchpoints roll up to the same identity, not fragmented entities.

• Lead Scoring and Risk Modeling

  Spot patterns across multiple addresses that could indicate legitimate multi-use, or potential risk.

• Re-engagement and Win Back Campaigns

  Reconnect with customers using alternate emails when primary addresses go inactive or unresponsive.

Built for Integration. Designed for Intelligence.

You don’t need another silo. You need data that works with your architecture, your cadence, and your priorities. That’s why AtData makes its Alternate Email File available through flexible licensing models, so you can bring it into your platform, graph, workflow, on your terms.

No black boxes. No proprietary roadblocks. Just a deeper layer of intelligence that your team can immediately put to work.

Why This Changes the Game

Email is the most persistent identifier in digital identity, but it’s rarely singular. By accounting for the ways people actually use email, you strengthen the foundation for everything else:

• More complete recognition
• Expanded personalization reach
• Better risk detection
• Greater modeling accuracy
• Stronger lifecycle marketing
• More confident activation across channels

And the benefits don’t stop at marketing. Identity is the cornerstone of AI readiness, customer trust, and data governance. If you’re building systems for the future, you can’t afford yesterday’s assumptions.

Identity doesn’t stop at one inbox. Your recognition strategy shouldn’t either.