Email Spam Score & HTML Audit

How VORTΞXHQ scores spam likelihood and audits email HTML quality — every rule, every weight, every fix.

Spam score (0–10)

The Spam Analysis tab runs nine deterministic rules and assigns a score plus a recommendation.

Rule	Weight	Trigger
Missing SPF	+1.5	No SPF result in headers.
Missing DKIM	+1.5	No DKIM signature.
Spammy subject patterns	+2	FREE!!!, WIN, ACT NOW, etc.
High capitals ratio	+1	> 30 % of subject in CAPS.
No unsubscribe link	+1	List-Unsubscribe header missing for marketing-style mail.
Bad HTML/text ratio	+1	HTML > 100 KB but text version < 200 chars.
URL hygiene	+1	Bare IP URLs, suspicious TLDs, link text mismatch.
Plain-text alt missing	+0.5	HTML-only multipart with no text alternative.
Sender domain mismatch	+0.5	From header domain ≠ Return-Path domain.

Total ≤ 3.0 = likely good · 3.0–6.0 = borderline · > 6.0 = spammy.

The HTML Check tab catches the bugs that ruin emails in real clients:

Check	Why it matters
DOCTYPE present	Missing DOCTYPE breaks layout in Outlook.
Title element	Required for accessibility and inbox preview.
Image alt attributes	Lists every `<img>` without `alt`.
Inline styles	External stylesheets are stripped by Gmail; flag > 5 external rules.
Empty links	Anchor tags with no `href` or no body text.
Table layout	Warns when div-based layout is used (poor Outlook support).
Viewport meta	Mobile responsiveness needs a viewport tag.
Media queries	Counts; warns if zero on a layout > 600 px wide.
Deprecated tags	Lists any `<font>`, `<center>`, `<marquee>`.
Oversized HTML	Gmail clips at 102 KB — warns at 80 KB.
Background images	Outlook drops `background`; warns and suggests VML.
JavaScript leakage	Any `<script>` tag is flagged (always stripped).
Embedded forms	Forms in email are blocked by most clients.

Each issue is shown with the offending snippet and a one-line fix suggestion.