Case Study

MyCarNeedsA.com sends up to 1 million emails a month, so invalid email addresses can quickly take a toll on email deliverability and performance. By using ZeroBounce during its data onboarding process, the automotive comparison platform cut its overall bounce rate by nearly 70%, reduced hard bounces by 81%, and decreased spam complaints by 54%.
“Our experience with ZeroBounce has been positive,” says Connor Canavan, Business Development Manager at MyCarNeedsA.com. “We use it on a regular basis to validate email data before sending campaigns, and this has helped us maintain cleaner databases and improve our overall sender reputation and deliverability.”
MyCarNeedsA.com is an online comparison platform that helps car owners compare quotes for MOT tests, routine maintenance, and auto repairs. MOT tests, required annually in the United Kingdom, assess whether vehicles meet road safety and environmental standards.
The company also serves insurance companies, so it handles email data from multiple partners and sources, which makes reliable email validation essential. Data quality could vary, and invalid email addresses were driving up bounce rates and hurting the service’s email reputation.
After an email sending service recommended ZeroBounce, the MyCarNeedsA.com team made email hygiene part of its everyday workflow.
And the results speak for themselves.
Before ZeroBounce, MyCarNeedsA.com had an overall bounce rate of 4.33%. The hard bounce rate was 1.22%. After implementing ZeroBounce, those rates fell to 1.32% and 0.23%, respectively.

MyCarNeedsA.com is the customer-facing brand and trading name of Hamilton Internet Services Limited. Its team of eight gives vehicle owners an easy way to compare quotes for mandatory annual vehicle safety tests and service, maintenance, and all manner of repair work. The service also works with insurance companies.
MyCarNeedsA.com sends 900,000 to 1 million emails per month and the team typically validates about 150,000 email addresses monthly, although volume varies.
With an email volume like MyCarNeedsA.com’s, even a small percentage of invalid addresses can create a significant number of bounces.
Connor Canavan, Business Development Manager, understood the problem was straightforward: “Invalid email addresses affected our bounce rate and, in turn, our email reputation.”
The consequences can last beyond a single campaign. A high bounce rate can signal low list quality, weaken sender reputation, and make it harder for your next emails to reach the inbox.
Because the company’s email contacts also come from multiple partners, the data quality can vary. MyCarNeedsA.com needed a fast, dependable way to identify invalid and potentially damaging email addresses before adding them to its database and sending campaigns.
The tipping point came when one of the company’s email sending platforms advised the team to take action.
“We decided to use ZeroBounce because it was recommended to us by one of our email sending services as a solution to weed out bad emails,” Canavan explains. That recommendation mattered.

We use ZeroBounce on a regular basis to validate email data before sending campaigns. This has helped us maintain cleaner databases and improve our overall sender reputation and deliverability.
Connor Canavan, Business Development Manager
Now MyCarNeedsA.com uses ZeroBounce before campaigns go out.
“Our volumes vary depending on the data we receive from our partners,” Canavan says, “but on a typical month, we validate approximately 150,000 email addresses through ZeroBounce as part of our data onboarding process.”
This routine process helps the team block invalid and poor-quality email addresses before they bounce or cause other deliverability problems. It also gives MyCarNeedsA.com more control over the quality of the partner data it receives. Not all email data sources are equal.
“The platform is straightforward and easy to use,” Canavan says. “It gives us confidence that we’re reducing invalid or poor-quality email addresses before they hit our campaigns.”
Having that peace of mind is particularly important for a business sending close to 1 million emails each month. Rather than relying on campaign metrics to show there’s a problem, the team can filter incoming email addresses during onboarding.
Email validation is now part of MyCarNeedsA.com’s sending routine, but the team also found other ways to use ZeroBounce. It uses the Email Scoring tool to evaluate catch-all email addresses.
Catch-all domains are configured to accept emails sent to any address, which makes it more challenging to determine whether a certain mailbox is valid or not. ZeroBounce now checks these types of emails during the standard validation process, but Canavan goes a step further and uses the scoring service.
“We use email scoring as an additional tool post-validation to provide an additional level of confidence when it comes to catch-all addresses,” Canavan explains.
The score helps the team make more informed decisions about which catch-all addresses to email. “For a business dealing with data from multiple sources with varying data quality, this provides an additional level of confidence,” Canavan says.
When asked which ZeroBounce feature stands out most, Canavan doesn’t hesitate:
“Excellent email scoringⓘ.”
Before MyCarNeedsA.com began using ZeroBounce, from July 2022 through August 2023, its overall bounce rate was 4.33%. The hard bounce rate was 1.22%.
After the company introduced ZeroBounce, the results improved significantly. From September 2023 through June 2026, its overall bounce rate averaged 1.32%, while the hard bounce rate fell to 0.23%.
With regular email validation, MyCarNeedsA.com achieved an almost 70% reduction in its overall bounce rate and an 81% reduction in hard bounces.
Before ZeroBounce: 4.33%
After ZeroBounce: 1.32%
Reduction: 70%
Before ZeroBounce: 1.22%
After ZeroBounce: 0.23%
Reduction: 81%
The improvements didn’t stop there. Spam complaints decreased, too. Before ZeroBounce, MyCarNeedsA.com’s complaint rate was approximately 0.063%. After implementation, it dropped to about 0.029% – a reduction of roughly 54%.

Along with fewer hard bounces and lower complaint rates, Canavan says MyCarNeedsA.com saw an improved sender reputation score.
Getting a handle on bounces and improving sender reputation matters at all sending volumes, but the impact is especially significant when a company sends close to 1 million emails a month.
Cleaner data helps protect sender reputation and gives legitimate emails a better chance of reaching customers.
ZeroBounce is now a regular part of how MyCarNeedsA.com prepares email data for its campaigns. Canavan recommends the service to other businesses looking to keep cleaner lists and reach more inboxes.
“I would 100% recommend ZeroBounce to anyone looking to improve their email data quality and protect their overall sender reputation.”
For MyCarNeedsA.com, better email data means measurable gains: fewer emails bouncing, far fewer spam complaints and a fortified sender reputation. The company can now onboard partner data knowing it has taken an important step to protect email performance.