Free tool
Cold email spam checker
Paste your cold email. See what filters and busy readers will flag, before you hit send.
Runs in your browser. Nothing you paste is sent anywhere.
Want to reach them?
Write emails that get repliesOutreachSDR finds their work emails and writes a first message for each, from what they posted.
What the checker looks at
Trigger words
Phrases like "free", "guaranteed" and "act now" that filters and readers associate with mass mail.
Shape
Length, subject length, links, caps and exclamation marks: what separates a note from a newsletter.
Personal touch
Leftover placeholders and whether there's one easy question to reply to.
FAQ
- What makes a cold email land in spam?
- Mostly the sender's setup (SPF, DKIM, DMARC, domain age, volume), then content: salesy trigger words, several links, images, all caps and HTML-heavy templates.
- How long should a cold email be?
- Usually 50 to 125 words. Long enough to give one reason you're writing to them, short enough to read on a phone.
- Should I put a link in the first email?
- Ideally not. Links trigger corporate security scanners and spam filters. Ask a question first and send the link when they reply.
- Is my email stored?
- No. The checker runs entirely in your browser; nothing you paste leaves your device.