I’ve hit a wall with cold email and I can’t figure out why. As far as I can tell, I’ve done everything by the book. I send from two dedicated domains, look-alikes of the main brand domain, which itself never sends cold. They’re about 7 months old. Both have SPF set to -all, 2048-bit DKIM and DMARC at p=reject with strict alignment, and both redirect to the main site. On those domains I run 10 Google Workspace mailboxes, 5 per domain, about 4.5 months old. Each one has a name and a profile photo, and they send through the Gmail API rather than SMTP. I keep the volume low. Each mailbox sends 6 emails a day, so 60 a day in total, only Monday to Friday in US business hours, with 10–20 minutes between sends from the same mailbox. The emails are as plain as they get: plain text, no links, no images, no attachments, no open or click tracking. The first email is about 90 words. Two follow-ups of about 50 words come after it in the same thread, so that’s 3 touches over about a week and a half. I write every subject for the specific lead, and none of them contain numbers. I’m emailing founders and CEOs of US Shopify brands. Every address is verified “ok” in MillionVerifier, with no catch-alls. Every recipient is on Google Workspace, there are no role addresses, and I only email one person per company at a time. The result is 0 bounces on the last 243 sends. And still I keep landing in spam. I’ve sent 181 first emails and haven’t had a single reply. What am I missing?