DatazappAppend verified email addresses for as little as 3 cents each.
Upload your mailing list and append matching consumer or business email addresses for as little as $0.03 per match. DataZapp’s self-service platform makes it easy to enrich your data, review match results, and download your completed file quickly.
Already connecting via mailers or phone calls? Take your outreach further — append verified personal or business email addresses to those exact records. Introducing email options lets you establish consistent touchpoints, deploy nurture sequences, and maximize conversion velocity across all marketing channels.
Unlock the hidden potential of your offline contact files. Appending active email data allows you to effortlessly build highly accurate Custom Audiences across Meta, LinkedIn, and Google Ads. Drastically improve your digital platform match rates and run hyper-targeted, cost-effective paid ad campaigns.
Lapsed, past, or incomplete customer profiles shouldn't go to waste. A clean email append equips you with a direct, cost-efficient path to deploy targeted reactivation campaigns, run exclusive win-back promotions, and instantly reclaim lost revenue without purchasing completely new cold lists.
Incomplete lead capture forms stall your sales funnel. DataZapp appends verified, high-deliverability email coordinates to incoming records. Our high-speed Email Append API plugs straight into your CRM or sign-up forms, automatically validating and data-enriching your inbound leads the moment they hit your system.
Whether you are re-engaging dormant contacts, reactivating lapsed customers, or converting prospects from past campaigns, the size and accuracy of your custom audience depends on how complete your contact data is. Most advertisers upload minimal offline lists and accept a poor platform match rate without realizing the scale they are leaving behind.
By appending multi-point verified email addresses before upload, you give platforms like Meta, Google Customer Match, TikTok, and Snapchat a second — often stronger — matching signal. More matched records mean larger retargeting audiences, higher-fidelity lookalike seeds, and a significantly lower cost-per-acquisition across paid channels.
Real Estate
Telemarketing is an excellent lead generation strategy for attracting possible home sellers or buyers
Political Campaigns
Diversify your campaign marketing via Email - Ideal for fundraising, awareness, and GOTV campaigns
Telemarketing
Call centers & all other companies doing telemarketing campaigns need high quality phone numbers
Fundraising
Telemarketing is a very successful outbound strategy for non-profits & political campaigns raising funds
DataZapp’s Email Append API lets developers enrich records programmatically with available Emails. Use it to complete lead records inside your CRM, intake form, data platform, marketing workflow, or customer database.
{
"AppendModule": "EmailAppend",
"AppendType": 3,
"Data": [
{
"FirstName": "John",
"LastName": "Doe",
"Address": "123 Main St",
"City": "Anytown",
"Zip": "12345"
}
]
}Email appending is the process of finding and adding missing email addresses to your contact list by matching names and postal addresses against our 750 million-record database to return the most accurate email for each individual.
Yes. DataZapp’s advanced identity resolution technology is designed to match emails even to older or legacy records. Our system uses a proprietary identity graph—powered by nearly 1 billion consumer records—to accurately identify individuals and provide their most current email address. This process not only improves email match rates but also enhances the accuracy of associated name and address data.
The most common services are business email append and consumer email append. We also offer reverse email append, which starts with an email address and matches it to the corresponding name, postal address, and phone number.
Our email append accuracy typically ranges from 75% to 87%. We use a proprietary matching algorithm that appends at both the individual and household levels. All emails are then verified and scrubbed to ensure up to 98% deliverability.
At DataZapp.com, email appending starts at 3 cents per verified match with our pay-as-you-go plan. Prepaid plans offer even lower rates and added benefits. Check our pricing page or use the cost-calculator for a quick estimate.
Most email append requests submitted through our 24/7 online platform are completed in under 10 minutes.
Yes. Every list you upload receives a free, no-obligation match report within 10 minutes. To get started, simply create an account and upload your file. No credit card or payment is required to view your detailed match results.
DataZapp offers a high-speed Email Append API specifically designed for developers and businesses looking to automate their data enrichment workflows. Our API allows for seamless integration into your CRM or proprietary software, providing real-time email matching and verification at scale. See our API services & documentation here.
1. Upload Your List
And complete a simple mapping step.
2. Map your Columns
Identify the first name, last name, and address fields.
3. View Match Report
In minutes, you'll receive a no-obligation match report.
4. Purchase & Download
your list complete with email addresses for just $0.03 or less per Email!
Lower prices are available on Pre-Payment Plans.
Easy, Fast, & Affordable.
Most lists take less than 10 minutes to process.
See how to add Emails to your postal records.
Add mobile cell numbers or landlines to your contacts.
Add Demographic & Behavioral data points to your contacts.
Add Names, Address, even Emails to your Phone records.
Flag or Remove Do-Not-Contact & other undesirable phone numbers.
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