REVERSE EMAIL APPEND SERVICE

REVERSE APPEND EMAIL OR HEM DATA (upload email or HASHED SHA256/MD5 EMAILS)

$0.03 / EMAIL or HASH

Use Datazapp’s Reverse Email Append service to:

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How Reverse Email Append Works

Affordable & Accurate Data Appends – Just 3 Cents Per Match!

Append your email lists with names, addresses, and phone numbers.

DataZapp makes it fast, easy, and cost-effective—just 3 cents per match!

Accurate & Up-to-Date Data

Only the most relevant postal information is provided for each email.

Save Time & Money

Get high-quality data at a fraction of the cost.

Instant Access

Our 24/7 self-service platform delivers results in real time.

Bulk Discounts Available!

Get even lower rates with our prepaid plans.

OUR REVERSE EMAIL APPEND SERVICE

Upload Emails,
SHA, or MD5 Hashes

John Smith
[email protected]
(602) 502-4578

123 Blue St. Phoenix, AZ
Company Name & SIC
(if available)

Upload your email list or HEM list to enrich it with associated name, mailing addresses and phone numbers. For added security, you can also upload hashed SHA256 or MD5 email strings instead of plain email addresses.

DataZapp processes hashed email lists (HEMs) to retrieve their associated email addresses, along with key details like name, mailing address, city, state, ZIP code, and phone number. Get accurate, up-to-date data while keeping your information secure!

Want deeper insights into your audience? Our demographic append services enriches your email lists with key demographics data like age, gender, ethnicity, income, home ownership, children in the household, home value, donor affinity, and more.

< 5 Minutes

Turn-Around Time

25-60%

Avg Match Rate

290 Million

Mailing Addresses (Updated 2025)

Only Pay

for matches

HOW TO REVERSE APPEND EMAIL LISTS:

REVERSE EMAIL APPEND SERVICE FAQ'S

What is Reverse Email Appending?

Reverse email append service, you can enrich your email list by adding mailing addresses and phone numbers for just 3 cents per match. Email addresses represents person's digital identity, and reverse email appends can expand your contact options.

Why Reverse Append Emails?

Obtaining postal and phone info for Email lists expands the marketing channels available to marketers. Marketers and e-commerce site owners can use reverse email to expand their marketing options or verifying registrations to reduce risk and fraud.

What are the Various Kinds of Email Append Services?

Besides Reverse Email Appending, Datazapp also offer standard Email append for both Consumer and Business Email addresses. This service takes lists of postal information (Names & Addresses) and returns associated Email addresses.

How Accurate Is the Appended Data?

The accuracy of postal data matched to email addresses ranges from 75% to 87%. Hashed emails or HEMs are securely converted back to plain text with 100% accuracy—no data is lost in the process.

What is the Turnaround Time for Reverse Email Appends?

Most appends submitted on our 24/7 online platform turn-around in under 5 or 10 minutes.

Can I View the Match Results before Purchasing?

Yes, you will receive a no-obligation match analysis for every list uploaded. Create an account at www.Datazapp.com and upload your file to view a detailed match report.

How Bulk Reverse Email Append Works

Using the Reverse Email Append Service

What the Service Does:

Datazapp attaches ("appends") Names, Addresses, and Phone numbers closely associated with each of your list's Email records.

Step #1 - File

You'll need a spreadsheet or txt file.

This can be a .csv, Excel file, or text (.xlsx or .xls or .txt)

Step #2 - Format

Ensure your list has 1 column containing email addresses.

Please limit 1 email address per cell in your email column. Multiple emails per cell won’t be accepted.

Spreadsheet Example

	OrderDate	Email Address	Column 3	Column 4
1	03/08/2025	[email protected]	. . .	. . .
2	03/07/2025	[email protected]	. . .	. . .
3	03/05/2025	[email protected]	. . .	. . .
4	03/04/2025	[email protected]	. . .	. . .
5	03/03/2025	[email protected]	. . .	. . .
6	03/01/2025	[email protected]	. . .	. . .
7	02/28/2025	[email protected]	. . .	. . .
8	02/27/2025	[email protected]	. . .	. . .
9	02/26/2025	[email protected]	. . .	. . .
10	02/24/2025	[email protected]	. . .	. . .
11	02/23/2025	[email protected]	. . .	. . .
12	02/21/2025	[email protected]	. . .	. . .
13	02/19/2025	[email protected]	. . .	. . .
14	02/18/2025	[email protected]	. . .	. . .
15	02/17/2025	[email protected]	. . .	. . .

Step #3 - Upload

Upload your file through the "Reverse Email Append" module in your Datazapp account.

If you’re currently logged in, you can follow this link . Click here to login.

Step #4 - Map

Match-up ("map") the "Email" data field to your Email column using the dropdown menu's below.

Give it a try!
Set the dropdown values below to the corresponding data columns:

Dropdowns in Table Cells

Spreadsheet Example

	Column 1	Email Address	Column 3	Column 4
1	. . .	[email protected]	. . .	. . .
2	. . .	[email protected]	. . .	. . .
3	. . .	[email protected]	. . .	. . .
4	. . .	[email protected]	. . .	. . .
5	. . .	[email protected]	. . .	. . .
6	. . .	[email protected]	. . .	. . .
7	. . .	[email protected]	. . .	. . .

Step #5 - Download

Most files only take a few minutes to process.

If your balance does not cover the order cost, visit the Buy Credits page.

You'll get a match report
of what we found.

Along with a quote,
which is no-obligation.

What you'll get back

Your file export will have Names, Addresses, and Phone numbers in the last columns, the rest of your data columns will be the same.

Spreadsheet Example

	OrderDate	Email Address	Column 3	Column 4	First Name	Last Name	Address	City	State	Zip Code	Cell Phone	Landline
1	03/08/2025	[email protected]	. . .	. . .	John	Doe	123 Elm St	Springfield	IL	62704	2135551234
2	03/07/2025	[email protected]	. . .	. . .	Jane	Smith	456 Maple Ave	Columbus	OH	43215		3125555678
3	03/05/2025	[email protected]	. . .	. . .
4	03/04/2025	[email protected]	. . .	. . .
5	03/03/2025	[email protected]	. . .	. . .
6	03/01/2025	[email protected]	. . .	. . .	Michael	Johnson	789 Oak Dr	Austin	TX	78705	7185551234
7	02/28/2025	[email protected]	. . .	. . .	Emily	Williams	101 Pine Ln	Phoenix	AZ	85001	8185555678	8185555678
8	02/27/2025	[email protected]	. . .	. . .
9	02/26/2025	[email protected]	. . .	. . .	Mary	Brown	202 Birch Rd	Denver	CO	80202	2025553456	2025553456
10	02/24/2025	[email protected]	. . .	. . .	David	Jones	303 Cedar St	Nashville	TN	37201	3035557890
11	02/23/2025	[email protected]	. . .	. . .
12	02/21/2025	[email protected]	. . .	. . .	Emma	Garcia	404 Spruce Ct	Raleigh	NC	27601	5055555678	5055555678
13	02/19/2025	[email protected]	. . .	. . .
14	02/18/2025	[email protected]	. . .	. . .	James	Martinez	505 Aspen Way	Boise	ID	83702	7075553456
15	02/17/2025	[email protected]	. . .	. . .

Discount Options:

You'll get discounted data rates by pre-payment or by order size.

Deposits of $1,000 or more lock-in lower rates

Spreadsheet Example

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

Match 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 +

Visit the Buy Credits page to pre-pay your account balance.

Contact [email protected] for questions.

REVERSE EMAIL APPEND SERVICE

Request Info X

How Reverse Email Append Works