Free tool
Spam-word checker.
DNS can be perfect and a subject line stuffed with “act now” and “100% free” will still push mail toward spam. Paste a subject line and body below to flag common spam-trigger phrases before you send.
Run the check
Paste your copy
Subject line and body, up to 20,000 characters. It is posted to our server, scanned, and discarded — nothing is stored, and it never goes in the URL.
We scan for trigger phrases
Whole-word matches against a curated list of the phrases that consistently correlate with spam placement across deliverability guides.
You see exactly what to cut
Each flagged phrase, with how many times it appears — copy is one signal, not the whole story.
Other free checks
SPF checker
Look up and grade your SPF record — policy strength, multiple-record errors, and DNS-lookup limits.
DMARC checker
Check your DMARC policy, enforcement level, and reporting — the records Gmail and Yahoo now require for bulk senders.
Blacklist checker
Check your inbound mail server’s IP — or paste your sending IP — against Spamhaus ZEN, SpamCop, and Barracuda.
CogniLead protects the rest — warmed sender pools, a reputation circuit-breaker, and suppression on every send.