illustration: bing.com/createThe study was conducted by Ziemek Bućko, content manager at Hunter.io, a platform for finding email addresses. The results of the analysis and the conclusions drawn from it were published on the company blog: What’s the Best Word Count for Cold Emails.
Bućko analyzed data from 34 million emails requesting contact to determine the optimal length of the sent message in terms of obtaining a response. The results indicate that shorter emails requesting contact have a higher response rate than longer ones.
- The average reply rate for the entire sample was 3.7%.
- Emails with a length of 20-39 words had statistically the highest response rate (4.5%).
- Messages with a length of 60-79 words (4%), 80-99 words (4%), and... 160-179 words (also 4%) achieved results clearly above the average.
The conclusion: shorter emails are more likely to be read and replied to. This is valuable advice for those who are engaged in prospecting and sales on a daily basis.
This also signals that the most frequently cited guidelines from Boomerang, recommending cold emails of 50-125 words, are now outdated. Moreover, as Ziemek Bućko emphasizes, they date back to 2016, which in the evolution of e-marketing is prehistoric. Furthermore, many commentators have overinterpreted some of the conclusions from the Boomerang study regarding its scope and methodology.
Length Matters, But...
However, the Hunter.io analyst emphasizes that the length of the email requesting contact is just one of many factors influencing the response rate. Other equally important factors include:
- Subject line: It should be clear, concise, and compelling enough to encourage the email to be opened.
- Message content: It should be personalized, valuable, and contain a call to action.
- Target audience: Emails requesting contact should be sent to the right people who are potentially interested in your offer.
From here, it’s easy to conclude that the optimal length of an email is a statistical curiosity that alone will not guarantee success. It is one of the factors worth considering from a UX perspective, but the key to success lies in the proper combination of all elements of the cold mailing puzzle.
For more information and data regarding the analysis, visit: https://hunter.io/blog/cold-email-word-count/
COMMERCIAL BREAK
New articles in section Marketing and PR
Rules of SEO in the AI era. The end of FAQ rich results and spam
Sandra Kluza, Harbingers
Google is increasingly distancing itself from AI hacks and reminding us that quality content, technical site availability, and user utility remain the foundation of visibility. AI Search does not replace SEO.
Data analysis. Warning signs and technical debt
Aleksander Pawzun, CalmFox.pl
Until a few years ago, a classic data warehouse, overnight processing, and reports available in the morning were a sign of organizational maturity. Today, in many companies, these same solutions have become an invisible constraint.
Artificial intelligence in shopping. E-commerce 2026 report
Piotr Michalak, Altavia Kamikaze + K2
Already nearly 40% of Polish consumers use artificial intelligence on their shopping journey, although they often do so unconsciously. According to a report by the Altavia Kamikaze + K2 agency, the current year marks the final transition from traditional searching to recommendations based on AI.
See articles on a similar topic:
7 facts about media relations. How to work with journalists
Bartłomiej Dwornik
In media relations, every mistake costs you attention. Every cliché wastes inbox space. Even a good and interesting topic might not be enough to break through. The way you present it also matters. Maybe even more than the content itself.
Large Online Ads vs. AdBlock. Poland Leads in Both Metrics
BARD
Large-format online ads make up 14% of Poland's online market, according to analyses by Gemius. This is the highest percentage among all surveyed markets. Paired with data on the rising popularity of ad-blocking - done by one-third of Polish internet users - it raises questions about the future of these ads.
The future of search is now. How AI is reshaping brand visibility
KFi
AI Search and Share of Voice are no longer optional marketing metrics. They’re essential. Yet only 7% of Polish companies use AI. In the new search landscape, that’s nowhere near enough. Fall behind now, and your brand could simply... vanish from the internet.
Internet Subscriptions: Market Value, Development Trends, and... Risks
KrzysztoF
According to McKinsey & Company, the number of subscription users globally has increased by over 17% in the past year. A report from UBS Group AG indicates that the total value of the global subscription market will reach as much as $1.5 trillion by 2025. This is twice as much as in 2020!




























