Paste a subject line and email body into this email spam checker to instantly scan for spam trigger words, ALL-CAPS, risky punctuation, link overload, and missing CAN-SPAM elements. You get a 0–100 spam score, a verdict, and a one-line fix for every issue — all in your browser, with nothing uploaded.
Mailbox providers score every message before it reaches the inbox. Content is only part of that score, but it's the part you control instantly. This spam word checker audits the signals filters weigh most.
We scan against ~120 known spam phrases grouped into money, free/discount, urgency, medical, scam/phishing, and overpromise. Each hit is weighted by category and counted in the subject and body, where subject-line hits cost more.
ALL-CAPS ratio, excessive exclamation marks, "$$$" and punctuation runs, and vague "click here" CTAs all read as shouting or low-effort spam to filters.
We measure link count, text-to-link ratio, image-to-text balance, and flag URL shorteners (bit.ly, tinyurl, t.co), which hide destinations and are heavily abused by spammers.
Commercial email must include a working unsubscribe mechanism and a valid physical mailing address. We check for both — missing either is a legal problem and a spam signal.
The U.S. CAN-SPAM Act applies to commercial email. The practical rules: don't use deceptive subject lines or "from" addresses, identify the message as an ad where relevant, include your valid physical postal address, give a clear opt-out, and honor unsubscribe requests promptly (within 10 business days). Penalties run into the tens of thousands of dollars per email, so the unsubscribe link and physical address aren't optional — and filters know to look for them.
IGSendMail pairs spam-safe content with automatic SPF, DKIM, and DMARC, real inbox-placement testing, and reputation monitoring — so your emails actually land.
Also see all deliverability features.