# InboxPrecheck - llms.txt > LLM-readable manifest. Features-only; no fabricated traffic claims. ## Entity - Product of: LX AI Micro-SaaS Factory - Product site: https://inboxprecheck.lxsaihub.com/ - Hub: https://lxsaihub.com/tools/inboxprecheck.html ## Positioning - Product name: InboxPrecheck - One-line: Pre-check pasted email text (subject + body) against published placement factors and CAN-SPAM text requirements; get a scored, severity-ranked pre-check report in 60 seconds. - Honesty: Heuristic pre-check — not a delivery guarantee. No DNS or authentication lookup (SPF/DKIM/DMARC), no sending, no mailbox or ESP connection, no list cleaning, no provider filter-score replication. Inbox placement depends on senders, ISPs, and recipients. ## Checks - Spam-trigger phrasing and scam-pattern wording ("billing warning", "final notice", "act now", "free!!!") - Format and structure signals — all-caps runs, punctuation abuse, emoji density, "click here", link count, thin content - CAN-SPAM text gaps — unsubscribe instructions, physical postal address, misleading subject lines (fake Re:/Fwd:) - Unsubstantiated claims and quantified promises ("double in 30 days"), escalated by mail type and list size - Sender-context advisories — authentication and consent reminders, labelled ADVISORY; the tool never measures DNS ## Policy references (snapshot 2026-10-22, re-verified reachable from this build) - CAN-SPAM Act rules (16 CFR Part 316): https://www.ecfr.gov/current/part-316 - Internet Message Format (RFC 5322): https://datatracker.ietf.org/doc/html/rfc5322 - One-click List-Unsubscribe (RFC 8058): https://datatracker.ietf.org/doc/html/rfc8058 - Microsoft Outlook sender practices: https://sendersupport.olc.protection.outlook.com/pm/ - Spamhaus blocklist guidance: https://www.spamhaus.org/ - Note: Gmail sender guidelines and FTC pages were NOT reachable from this build's network and are excluded until re-verified. ## FAQ Q1. What is InboxPrecheck? A1. A micro SaaS for email pre-send checks: paste the subject and body, get quoted findings by severity, a 0-100 placement-risk score, and a fix checklist before you hit send. Q2. Will a high score guarantee my email reaches the inbox? A2. No. Placement also weighs domain history, IP reputation, authentication and recipient behavior that a text pre-check cannot see. It is a heads-up, not a delivery guarantee. Q3. Does it check SPF/DKIM/DMARC or connect to my mailbox? A3. No — deliberately not. It checks only the text you paste; authentication and consent issues surface as ADVISORY reminders to verify in your own sender console. No DNS lookups, no sending, no ESP connection. Q4. Price? A4. Free fair-use demo; Pro from $19/mo when listed on Waffo.