How improved deliverability helped noord50 boost email outreach results

Noord50 is a B2B and SaaS lead generation agency based in Groningen, Netherlands. The team builds automated outbound and inbound systems that help clients generate high-quality leads through targeted email and LinkedIn outreach, supported by inbound tactics like lead magnets and CRM enrichment. A core part of scalable outreach is reliable email deliverability and domain security.

To overcome email performance limitations and boost engagement rates, Noord50 partnered with the GlockApps inbox placement and deliverability platform. The goal was to gain insights into how outreach messages performed across major email providers, improve inbox placement, and strengthen sender reputation.

Challenge: limited deliverability insights and engagement issues

Before using GlockApps, Noord50 faced three main challenges:

• concerns about sender reputation and domain setup

• limited visibility into how emails performed across inbox providers

• reduced effectiveness caused by strict filtering, especially on Outlook and Microsoft platforms

Without clear insights into deliverability, it was difficult for the team to optimize campaigns and maintain consistent engagement rates. This drove the search for a reliable testing and monitoring solution that could reduce the risk of messages landing in spam folders or going undelivered.

Solution: using glockapps for inbox insight and deliverability tracking

To address these challenges, Noord50 implemented GlockApps inbox insight and DMARC analyzer tools. These tools provided detailed monitoring of inbox placement, authentication status, domain and IP reputation, and related metrics.

The team chose GlockApps for its:

• accuracy in deliverability reporting

• comprehensive insights into inbox and spam placement

• user-friendly interface

• ability to support multiple clients with different sending domains and volumes

The implementation was smooth and intuitive, with the GlockApps platform allowing Noord50 to track email performance without added complexity.

Results: better deliverability, engagement rates and revenue impact

Optimizing deliverability with GlockApps led to measurable benefits in Noord50’s outbound campaigns. The agency saw a significant improvement in inbox placement and engagement, even in campaigns where Outlook accounted for a large portion of the recipient base.

One notable outcome was a 38% reply rate in an Outlook-dominated campaign, a strong performance given how strict Microsoft filters have become. Continuous deliverability testing and authentication monitoring helped keep messages out of spam folders, improving client engagement and ultimately contributing to higher revenue from outreach efforts.

Noord50’s experience highlights the value of adding deliverability monitoring to a systematic outbound strategy, especially for teams running smaller account-based campaigns and larger “always on” email flows.

Takeaway for other businesses

For companies relying on email as a key outreach channel, the lesson is clear. Having accurate deliverability insights and strong authentication practices is essential to maintain engagement and avoid missed opportunities. Tools like GlockApps can remove guesswork and provide the data needed to make informed decisions about sending domains, authentication records and campaign performance.