Streamlining Mezzolab’s cold email lead generation

The curious (extremely successful) case of Mezzolab

First thing that convinced the CEO & Creative Director of MezzoLab, João, to use RightHello is the quality of our cold emails. As soon as he received a few, he knew that we’re good.

João had experience in using cold emails to generate leads for his company. But manual prospecting, writing and sending were too time-consuming and not effective enough.

From email to deal – how Mezzolab got 4000% lead generation ROI

The beginning of our process is all about building the fundaments for a highly-converting cold email chain:

  • defining and documenting offer and selling propositions
  • defining target customer profile

Afterwards clients get access to our app to find the first few hundred companies to send emails to.

It’s a key part of the process, yet clients don’t always prioritise it as much as we need them to. João didn’t have enough time to make sure he picks great companies at first. Whenever this happens, the process gets messy from there on out.

When initially there were no strong leads and very little replies, João’s marketer (Beata) put a lot of work into adjusting and improving the campaign.

Because it was a complex problem on both sides, the first replies came right before João decided to quit working with RightHello – 10 replies that changed everything!

Campaign stats

Targeted at a) startups in need of video and b) US agencies similar to Mezzolab (to outsource their projects).


Emails sent – 531

Open rate – 74%

Reply rate – 21%

ROI was there… a month later

For a month after Mezzolab officially stopped working with us, Beata was still helping anyway she could – and multiple follow-up emails were still scheduled and sent after officially halting cooperation.

João closed 2 deals a month later, from the 10 replies he’d previously gotten. Those deal went from few thousand to $40.000 worth in a few weeks.

4000% of return from one campaign – because our standard monthly pricing is $800 (the math clearly isn’t precise but we believe the conclusion remains clear). João admits to having been too careless when first picking companies in the RightHello app.

He realised it’s vital to cold emailing – and we realised how crucial it is to make sure our clients understand it. Perfect description of a win-win for everyone involved.

And we’re super glad to officially be cooperating with Mezzolab again!

Thank you, João!


João’s testimonial:

“Leads start arriving straight in your inbox, which is especially awesome when you’ve been cold mailing on your own and you know how much work has to happen – finding contacts, writing and sending emails, optimization and improvements – until you get at least 1 positive lead in your inbox.

RightHello helped us simplify our sales process with their expertise. Quick access to companies and contacts makes things much easier – especially since I could finally get a lot of contacts that are impossible to get without a solution like RightHello.

Other solutions are costlier, and the ROI isn’t quite there once you take into account the time you need to invest in order to see results. We’ve had a rough patch at the beginning, where I thought this simply wasn’t working – now we’ve optimized our campaigns with RightHello and we couldn’t be happier with the ROI we’ve been getting.

The bottom line is this: it now takes us about 2 to 3 hours a month to select 300 companies that are in our target audience – RightHello makes sure the contacts are valid and sends them our customized email campaigns. It really is that simple. Plus, their software is being improved all the time which makes us certain that the ROI will increase over time.

We weren’t getting any results in the first couple of weeks but now our ROI with RightHello is at 40 to 1 which is really awesome and allows us to grow our company.”

João Filipe Freitas
CEO of Mezzolab