Creators

From 9.78% to 18.86% open rate in 60 days.

Tiago Tessmann nearly doubled his open rate and recovered 250k engaged contacts in 60 days through base analysis, segmentation and calibrated cleanup, even operating 2.4 million monthly sends.

+92.8%

in open rate

250k

engaged contacts recovered

+28%

in CTR on sends

Conversão Extrema is the digital products company of Tiago Tessmann, focused on training, mentorships and digital launches. The operation sends an average of 2.4 million emails per month to a broad base with a significant tail of inactive contacts.

Goals

  • Improve email engagement metrics
  • Generate more leads and sales through the channel
  • Stop burning reputation with disengaged contacts
  • Increase traction on launches, lives and other company initiatives

Solutions

  • Engagement analysis of the current base
  • Segmentations to test engagement across distinct bands of the base
  • Automatic cleanup of disengaged contacts
  • Reactivation of highly engaged contacts via email

The problem

In January 2026, Conversão Extrema was sending 2.4 million emails per month with 0.46% clicks and 9.78% open rate. The base was treated as a single block. Launches, lives and weekly initiatives went to everyone, including contacts who hadn't responded in months.

The cost accumulated on two fronts. First, domain reputation suffered from continuous volume sent to contacts who no longer engaged. Second, the commercial traction of the launches was limited by an audience that, in practice, was no longer there.

The optimization strategy

Inbox ran a sequence of discovery steps on Tiago's base. The goal was simple: understand who engages and who doesn't. Engaged contacts return to the active flow. Disengaged contacts leave the route.

Phase 1: engagement analysis

Before any action, we mapped the real engagement of the base. The result exposed a long tail of inactive contacts consuming send volume every month with no return in opens or clicks. The overall baseline sat at 9.78% open rate, but hid very distinct averages per engagement band.

Phase 2: test segmentations

We built segmentations to test the behavior of each band. Highly Engaged, Moderately Engaged, Lightly Engaged, Lightly Disengaged and Moderately Disengaged started receiving separate sends. Highly Engaged opened above 30% of the same content that Moderately Disengaged opened just above 6%. The separation showed that the global gain did not depend on changing creative. It depended on distributing effort.

Phase 3: automatic cleanup

With the map in hand, cleanup was automated. Contacts in the Moderately Disengaged segment and below were removed from regular campaigns. The effect was immediate: less volume burned on those who don't respond, more reputation room preserved for those who do.

Phase 4: reactivation of highly engaged contacts

The final front was rescue. Contacts with high engagement score who had gone dormant or fallen out of the active flow were worked through isolated reactivation campaigns. In total, 250,000 highly engaged contacts came back into active communication, with average opens above 30%.

The results

In January 2026, before implementation, Conversão Extrema operated at 9.78% average open rate and 0.46% CTR over a base receiving 2.4 million sends per month. In April, two months after the full strategy went live, open rate rose to 18.86%. A +92.8% evolution over baseline.

CTR on sends also rose, from 0.46% to 0.59% in the same period. Without changing creative, without changing copy. Just distribution.

Reactivation closed the loop. Two hundred and fifty thousand highly engaged contacts were brought back into the active communication flow, with average opens above 30%. These are contacts that were dragging metrics down while inactive and are now generating reads, clicks and sales opportunity again.

Two honest technical notes. Bounce rose from 0.52% to 1.04% and unsubscribes from 0.17% to 1.04% in April. Both numbers are expected when closing an aggressive base recycling cycle and remain under monitoring until they stabilize.

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Tiago started at 9.78% open rate and nearly doubled it in 2 months. Email Intelligence is in free beta now. Same install. Same process.

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