I’m Wojtek Blazalek, an email deliverability specialist with more than 15 years of experience building, fixing, and scaling email systems. I’ve led deliverability at GetResponse and Woodpecker and worked with infrastructure handling more than two billion messages a month. Today, I help SaaS, ecommerce, and high-volume senders improve inbox placement, authentication, sender reputation, and sending reliability. I also write practical guides, investigate SMTP errors, and speak about the systems behind reliable email. If your business depends on email reaching the inbox, explore my work at Blazalek.com.