ProductReverse Email Lookup: How to Find the Person Behind Any Email AddressLearn how you can reverse an email look up to find the name, company, technologies, and much more behind a person's name.Ziemek Bućko • 12 June 2026
OutreachWhy You Need to A/B Test Your Email OutreachA/B testing is a simple concept: you test two (or more) variants of a variable against each other to figure out which yields the best results.Ziemek Bućko • 31 March 2026
OutreachA Salesperson's Guide to Email Outreach for SalesIf you’re a salesperson or a founder and you want to use email outreach for sales, this guide will get you from zero to competent. It covers everything from the technical basics to finding prospects to writing and sending sales emails that get positive replies.Ziemek Bućko • 25 March 2026
OutreachHow Expensive Is Email Outreach?What goes into the cost of email outreach? And how to calculate the monthly cost based on how many people you want to contact?Ziemek Bućko • 05 March 2026
OutreachA Complete Guide to Email DeliverabilityFind out what affects email deliverability and follow the tips to improve it.Ziemek Bućko • 04 March 2026
OutreachThe Problem of Balancing Width and Depth in Email OutreachKnowing that targeting fewer recipients with your outreach helps stay more relevant, how can you still reach out to as many people as possible without it taking forever?Ziemek Bućko • 09 February 2026
GrowthIs HTML Harming Your Cold Email Deliverability?Our internal data shows that HTML cold emails bounce 674% more than plain text.Ziemek Bućko • 08 January 2026
