Datazapp attaches ("appends") Email addresses closely associated with each of your list's contacts.
(Max 1 Email per row)
Upload lists any time 24/7 to see match counts & quotes. Purchase lists as desired with built-in scalability.
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, we can! For files with over 75,000 records, we offer complimentary USPS Address Update (CASS & NCOA). This service standardizes addresses and updates any moves from the past 48 months, enhancing both email match rates and the accuracy of your name and address data. Contact your account manager to take advantage of this service.
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.
Most email append requests submitted through our 24/7 online platform are completed in under 10 minutes.
Yes — every list you upload receives a no-obligation match analysis. Simply create an account at www.DataZapp.com and upload your file to view your detailed match report.
Datazapp attaches ("appends") Email addresses closely associated with each of your list's contacts.
(Max 1 Email per row)
You'll need a spreadsheet file.
This can be a .csv or Excel file (.xlsx or .xls)
Ensure Names and Addresses are in your list.
Addresses must be separated into 4 columns:
| First Name | Last Name | Address | City | State | Zip Code | |
|---|---|---|---|---|---|---|
| 1 | John | Doe | 123 Elm St | Springfield | IL | 62704 |
| 2 | Jane | Smith | 456 Maple Ave | Columbus | OH | 43215 |
| 3 | Michael | Johnson | 789 Oak Dr | Austin | TX | 78705 |
| 4 | Emily | Williams | 101 Pine Ln | Phoenix | AZ | 85001 |
| 5 | Mary | Brown | 202 Birch Rd | Denver | CO | 80202 |
| 6 | David | Jones | 303 Cedar St | Nashville | TN | 37201 |
| 7 | Emma | Garcia | 404 Spruce Ct | Raleigh | NC | 27601 |
| 8 | James | Martinez | 505 Aspen Way | Boise | ID | 83702 |
| 9 | Olivia | Rodriguez | 606 Hickory St | Sacramento | CA | 95814 |
| 10 | William | Lopez | 707 Cherry Ln | Salem | OR | 97301 |
| 11 | Sophia | Lee | 808 Dogwood Blvd | Topeka | KS | 66603 |
| 12 | Jacob | Gonzalez | 909 Elmwood Ave | Charleston | WV | 25301 |
| 13 | Mia | Hernandez | 1010 Fir St | Salt Lake City | UT | 84101 |
| 14 | Ethan | Anderson | 1111 Pinecrest Rd | Little Rock | AR | 72201 |
| 15 | Isabella | Thomas | 1212 Maplewood Dr | Madison | WI | 53703 |
Upload your file through the "Email & Phone Append" module in your Datazapp account.
If you’re currently logged in, you can follow this link .
Example, select “Email Append” if you need Emails, but leave other options blank if you do not need that info.
Match-up ("map") the data fields to your column headers using the dropdown menu's below.
Give it a try!
Set the dropdown values below to the corresponding data columns:
| First Name | Last Name | Address | City | State | Zip Code | |
|---|---|---|---|---|---|---|
| 1 | John | Doe | 123 Elm St | Springfield | IL | 62704 |
| 2 | Jane | Smith | 456 Maple Ave | Columbus | OH | 43215 |
| 3 | Michael | Johnson | 789 Oak Dr | Austin | TX | 78705 |
| 4 | Emily | Williams | 101 Pine Ln | Phoenix | AZ | 85001 |
| 5 | Mary | Brown | 202 Birch Rd | Denver | CO | 80202 |
Most files only take a few minutes to process.
Your file export will have Email addresses in the last column, the rest of your data columns should be the same.
| First Name | Last Name | Address | City | State | Zip Code | Datazapp_Email | |
|---|---|---|---|---|---|---|---|
| 1 | John | Doe | 123 Elm St | Springfield | IL | 62704 | [email protected] |
| 2 | Jane | Smith | 456 Maple Ave | Columbus | OH | 43215 | [email protected] |
| 3 | Michael | Johnson | 789 Oak Dr | Austin | TX | 78705 | |
| 4 | Emily | Williams | 101 Pine Ln | Phoenix | AZ | 85001 | |
| 5 | Mary | Brown | 202 Birch Rd | Denver | CO | 80202 | [email protected] |
| 6 | David | Jones | 303 Cedar St | Nashville | TN | 37201 | |
| 7 | Emma | Garcia | 404 Spruce Ct | Raleigh | NC | 27601 | [email protected] |
| 8 | James | Martinez | 505 Aspen Way | Boise | ID | 83702 | [email protected] |
| 9 | Olivia | Rodriguez | 606 Hickory St | Sacramento | CA | 95814 | |
| 10 | William | Lopez | 707 Cherry Ln | Salem | OR | 97301 | [email protected] |
You'll get discounted data rates by pre-payment or by order size.
Deposits of $1,000 or more lock-in lower rates
| Pricing Plan | Per Match | Minimum Order | API Access |
|---|---|---|---|
| Pay as you Go | $0.03 | $125.00 | No |
| $1,000 Pre-Pay | $0.025 | No Min | Yes |
| $2,000 Pre-Pay | $0.02 | No Min | Yes |
Large orders also qualify for volume discounts
| Email Quantity | Per Match | Estimated Cost |
|---|---|---|
| 40,000 or less | $0.03 | $1,000 or less |
| 40,000 + | $0.025 | $1,000 + |
| 100,000 + | $0.02 | $2,000 + |
| 500,000 + | $0.0175 | $10,000 + |
| 1 Million + | $0.015 | $20,000 + |
To estimate order costs, click our interactive price calculator.
Upload lists any time 24/7 to see match counts & quotes. Purchased lists as desired with built-in scalability.
Add mobile cell numbers or landlines to your contacts.
Add Demographic & Behavioral data points to your contacts.
Add Names, Address, even Phones to your Email or hashed records.
Flag or Remove un-deliverable hard-bounce emails.











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