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Impressionwise Email Verification and Spam Trap Removal

Opportunities are one email away.

Experience Impressionwise's industry leading

Let our results speak for themselves.

Free List Evaluation

Simple choices, Advanced results.
A clean email address is the first step toward engaging with your recipients.

We go far beyond
other services.
Our email verification service uses a multi-layered approach to identify areas of concern within your list, validate all email addresses, and protect your sender reputation against a wide range of email-based threats.

The Result. A highly deliverable, safe list of emails that have been verified
and designed to protect and enhance your sender reputation.

Analyze Your List Now for Free


Email Verification and Threat Removal Experts

Guard against a wide range of email-based threats while protecting your online reputation.
Impressionwise performs over 240 independent, real-time scans analyzing your data for all known problematic or non-deliverable email addresses.

Protect your sender reputation

Verify email deliverability

Engage with your list

  • Pristine Spam Traps and Honeypots
  • Recycled Spam Traps and Moles
  • Third Party Oversight Seed Emails
  • Email Validation
  • Domain Sinkhole Identification
  • Email Blackhole Detection
  • Dormant Email and Role Accts
  • Habitual Protestor/ Abuse Email
  • Disposable Email Accounts


Unrivaled, Actionable Insight

Go beyond basic email validation and gain an unprecedented view and insight into your email list. Eliminate email bounces and discover hidden aspects of your data not normally found within traditional email list verification services.

Impressionwise is quite proud of our industry leading List Profile Report which references the data we purport to be undeliverable versus valid and spam-trap free.

Sign up for a complimentary email list evaluation. No credit card required, zero obligations.


A Smarter Way to Onboard

Impressionwise is known world-wide for being the foremost expert in email verification and threat removal.

Our technology allows you as an ESP to proactively engage with potential and current senders to evaluate their lists in a way that focuses on the various challenges ESP's are faced with regarding compliance throughout the lifecycle of a sender.

Sign up for a free list evaluation data to illustrate the benefits of our data intelligence.

Complimentary Data Intelligence Evaluation


Sender Reputation Matters

Senders are judged not only on the quality of their list, but also on the quality of their network resources.

If you are not ensuring that your email lists are free of spam traps and other email based threats, your sender and brand reputation are at stake. Maintaining a clean list will allow you, as a sender to maintain clean email resources resulting in a highly deliverable and successful campaign.

Experience the deliverability that comes along with quality data intelligence. Try our free complimentary email list evaluation.

Free List Evaluation

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Simply, Automated, Flexibility

Our universal API provides real-time and batch cleansing of email addresses in bulk as a pre-send verification service or seamlessly integrated as a point of collection API feed or favorite ESP integration into numerous types of applications:

Point of Collection

Point of Collection

Pre Send Validation

Pre Send Validation

Remove harmful email addresses before you mail! Our simple to use yet flexible API provides secure, real-time and batch cleansing of email addresses. The platform is accessible via an API/web service as well as offered as an automated FTP service.

Remove harmful email addresses before you mail! Whether you have a single list to validate, or many, we provide several secure and easy-to-use list upload options.


The platform is accessible via a secure API/RESTful web service, automated FTP service, clientless FTP service,
accessible via Dropbox.com shared folder or simply via our web-based file transfer option. The result: a complete solution
that is faster, more secure, more reliable, and provides the most flexibility to fit your business-critical communication needs.

HTTP Feed API - This high speed processing option is designed for continuous, REAL-time, data cleansing with results provided within the initial posting transaction response. API resources are identified by URLs and interacted with using the standard HTTP methods. For additional information, see HTTP Feed API Setup.

FTP Feed Service – Designed for automated, batched submissions of larger volume data sets. This service is designed for those clients who receive data on a regularly scheduled basis (such as hourly, daily or weekly) which allows 24/7 access to Impressionwise cleaning services without the wait time of traditional processing in a secure manner. For more information, see FTP Feed Setup.

HTTP File Transfer - The easiest way to send and receive files allowing clients using a web browser to easily initiate file transfers with just a few clicks. Simply add your files and folders to the files panel and your files are instantly uploaded and imported into our cleansing process with results being returned within the same panel. For additional detail, see HTTP File Transfer Help.

Dropbox Share Access - Share files or folders of files to be cleaned right from your desktop. This includes manual, batched or fully automated file-based pickup and delivery of newly cleansed results directly to you for access from any device, anywhere. For additional detail, see Dropbox Sharing Setup.

A simple set up of data source location(s) and format allows you to post multiple files in multiple formats
at your convenience for an automated cleaning.

  • Email Autoresponders
  • CRM Systems
  • Registration Forms
  • Subscriber Management
  • ESP Integration
  • Landing Pages
  • Promotional Emails
  • Call Center Applications
  • Delivery Pre-screening


check fake email

It's a matter of risk versus reward

83% of email delivery failures are caused by reputation problems, not to mention the possible downtime and opportunity costs associated with having a bad sender reputation.



The recognized authority in email verification
and list cleaning services

With an average of 110,000 new email-based threats found each month, Impressionwise makes it easy for potential clients to evaluate our list cleaning services by offering a complimentary scan and report for a sample set of your data to illustrate the benefits of our services.

Try it Now


Experience the difference for yourself. Try our free list analysis!
Your online reputation should not be a game of risk versus reward. Give me a chance to help set you apart from the competition...
Get protected against a wide range of email-based threats. Let me explain to you how...
Experience unparalleled insight into your data. Click on chat so we can guide you through our industry leading report...
On the go? So are we. With Impressionwise, you always have instant access to your data at your fingertips. Let’ chat so I can showcase...
Whether you are interested in real time or batch cleansing, our flexible service will suit your needs. Questions, I can help...
Still not convinced? Let’s discuss or opt for a free trial and see why we are the leading email hygiene company in the industry.
Don’t put your resources at risk. Let Impressionwise protect your reputation and enhance your campaign outreaches. Click chat to continue this discussion...
Getting started is as easy as 1,2,3. Create your account today and see why so many others trust Impressionwise. Still not convinced, let’s chat...
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