How Johnston Mailing Transformed Data Audits from 2 Hours into 15 Minutes

Smarter data cleansing improved accuracy, accelerated quoting, and delivered measurable ROI for Johnston Mailing

Address Validation

Deceased, Goneaway, Movers & Duplicates

Data8 Online

Johnston Mailing - Client Case Study
Faster Audits
0 %
Elimination of False Positives
0 %

About

Founded in 2004, Glasgow-based Johnston Mailing processes millions of mail items each year, supporting clients across varied sectors including travel, charity and financial services. With a lean core team of 15 and rapid scalability during peak periods, the business delivers high-volume campaigns with precision.

The Challenges

Data quality is a fundamental part of Johnston Mailing’s services, and many clients underestimate the condition of their data.

To minimise wasted costs, compliance risks and reputational damage, they needed to suppress deceased and gone aways records, acquire movers’ new addresses and correct records with PAF addressing for optimum deliverability.

Slow, Cumbersome Processes

Data audits took too long and interfaces were difficult to use, creating friction for internal teams when adjusting cleansing parameters to client requirements.

Incomplete Data Management

Clients frequently underestimated the condition of their data, leaving deceased and gone-away records unsuppressed, movers' addresses unupdated, and PAF addressing uncorrected.

Wasted Costs and Reputational Damage

Poor data quality exposed clients to unnecessary spend, compliance risks, and damage to their brand through undeliverable or inappropriately targeted mailings.

Our Solution

Johnston Mailing adopted Data8 Online data cleansing platform to audit and cleanse customer data quickly and accurately. Supported by Data8’s team, a master audit template was created covering essential checks including deceased, gone away, movers, duplicates and address corrections. It is easy to customise quotes to client requirements thanks to custom templating.

Master Audit Templates

Reusable templates handle deceased, movers, duplicates, and address corrections efficiently

Fast, Accurate Audits

Process data files in as little as 15 minutes, compared to 2-hour audits previously

Customisable Quotes

Quickly adjust audit parameters to match client requirements without restarting processes

Detailed Reporting

Clear, actionable audit reports improve client communication, supporting Royal Mail compliance

Scalable Workflow

Able to handle millions of records efficiently during peak campaigns and activity with a lean core team of 15 staff

How it Works

Upload Data

Drop in client files to Data8 Online.

Run Audits

Automated checks identify deceased, gone-away, movers, duplicates, and incorrect addresses.

Adjust Parameters

Quickly customise what data to cleanse based on client needs.

Generate Reports

Clear, detailed audit reports for client communication and compliance.

Act on Results

Deliver corrected addresses, suppress outdated records, and improve mail ROI.

What's Included in an Audit Report?

Our data quality audit quickly gives you a clear view of your data health and detailed insights on address, phone and email quality, duplicates, movers, deceased records, TPS checks, and more.

Johnstons Mailing Example Audit or Report

The Results

Metric Before Data8 After Data8 Impact
Audit Time 2 hours 15 minutes 87% faster ✅
Accuracy of Deceased Suppression Frequent false positives Eliminated false positives Reduced compliance risk ✅
Quoting Speed Manual adjustments Instant quotes Faster client turnaround ✅
Compliance Cumbersome checks Streamlined checks Operational friction reduced ✅
Client Communication Basic audit reports Detailed, actionable reporting Clear insights & upsell opportunities ✅

“Quick and Easy”

"Data8 helped us set up a master template in the self-service online portal, which we’re now routinely using. It’s become quick and easy to drop in data files, run audits and adjust cleansing parameters to what clients decide to include or exclude, and upsell where relevant".
Johnston Mailing - Client Case Study
Kevin Johnston
Johnston Mailing

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