The Deliverability Reset In early 2024, Google and Yahoo rolled out new sender requirements that quietly killed half the cold email playbook everyone was running. SPF, DKIM, and DMARC became table stakes. Spam complaint rates above 0.3% started costing entire domains. One-click unsubscribe became mandatory for senders moving over 5,000 messages a day. The tools that survived this transition aren't the ones with the prettiest editors — they're the ones that take inbox placement seriously. Warm-up isn't a feature anymore, it's a requirement. Inbox rotation matters more than personalization tokens. We ran a comparison across three platforms still standing: Woodpecker , Lemlist , and Instantly . All three claim "cold email that lands." Here's how they actually compare for a small B2B SaaS team doing 500–5,000 outbound sends a month. Headline Comparison Where Woodpecker Pulls Ahead 1.…