Emails
Sent
✨ Updated 2025✨
About Formula Inbox
For years, we’ve watched companies struggle with their email deliverability, only to turn to unreliable software solutions that promise to unlock high inbox placement rates. Then those same companies end up in an unfavorable situation just a few weeks later.
Mission
Formula Inbox’s mission was to create an unbiased, practical learning resource to prevent those companies from wasting time and money on strategies that don’t sufficiently maximize inbox placement rates.
Achievements
Fast forward 12 months, and Formula Inbox has transformed into a full-fledged email deliverability consulting practice. In that time, we’ve assisted dozens of companies and thousands of professionals in unlocking industry-leading inbox placement rates.
Meet the Founder
As the Founder and Principal Consultant of Formula Inbox, Truitt Dill has helped dozens of companies bolster their email deliverability.
A seasoned marketing leader with over 10 years of experience, he has been tackling email deliverability issues throughout his career.
As the instructor of the top-rated email deliverability course on Udemy, Truitt has helped thousands of professionals conquer their email deliverability challenges. Now he would like to share his insights with you.
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Data Doesn’t Lie
+50M
+25
Clients
Served
+90%
Average
IPR*
IPR*
+$10M
Revenue
Impacted
*Average IPR is calculated after three months of working with a client.
