Filters score your email before a human ever sees it. Paste your subject + body and this flags spam-trigger words, shouting, punctuation abuse and other deliverability killers. It checks deliverability hygiene — separate from legal compliance. Runs in your browser.
Short, plain, specific copy inboxes best — these swaps keep the meaning, drop the filter risk.
This tool runs entirely in your browser — nothing you type is uploaded, stored, or tracked.
← All Hailports tools + the live switcher feed
← All guides + the live switcher feed
Tell us where to send it. You’ll get the current buyer-intent list for your space, plus a short note on how to read it. No spam, unsubscribe in one click.