What AI summaries mean for your open rates

Deliverability Defined Plus an honest update on my own deliverability comeback Here's something that's been on my mind lately: your subscribers might not be the first ones reading your emails anymore. Gmail, Apple Mail, and a growing pile of inbox tools now generate little AI summaries of your emails before a human ever opens them. Your subscriber sees a one-line gist sitting there under your subject line, and that gist helps them decide whether to actually click. So there's a new reader in...