Fifteen focused tools for senders — checkers, generators, content scorers, live diagnostics, AI-powered drafting. Each on its own page. Rule-based tools are pure DNS / WebCrypto / in-house scoring; AI tools use the configured model with a per-IP daily cap.
Pull live records, parse them, surface drift. Same engines as the paid in-app monitors.
Composite SPF + DKIM + DMARC + MX score for any domain. Same engine that powers our in-app Domain Health add-on.
Verify your domain's SPF record + policy. Flags missing records, soft-fail vs hard-fail, and lookup-limit overflows.
Probes 14 common DKIM selectors in parallel. Shows which selectors are publishing a signing key for your domain.
Read your DMARC policy + percentage. Flags weak none / quarantine vs strict reject.
Query 12+ public RBLs (Spamhaus, Barracuda, SpamCop, SORBS, …) in parallel for any IP or domain.
Wizards for SPF, DKIM, DMARC. Copy the output straight into your DNS panel.
Build a valid DMARC TXT record with the right policy, pct%, and report addresses. Copy + paste into your DNS.
Pick the ESPs you authorise (Google, Microsoft 365, SendGrid, …) and the enforcement policy. Live DNS-lookup-limit counter.
Generate a 2048-bit RSA keypair in your browser via WebCrypto — the private key never leaves your device.
Subject + body + word-level scoring. The other half of inbox placement, once the auth side is dialled in.
Score subject + body against ~15 deliverability rules. Returns 0-100 score + the exact rules to fix.
Highlight every spam-trigger word and phrase in your draft inline, with severity weight + category breakdown.
Grade your subject A–F on length, caps, emoji, punctuation, urgency, and spam triggers. Six dimensions, instant feedback.
SMTP handshake with the full wire transcript. The "why isn't my mail sending" debugger.
LLM-backed writing tools for cold outreach + follow-ups. Rate-limited per IP per day; signup gets you unlimited.
Tell us the goal — get a clean 4-6 sentence draft back. Cold outreach, follow-up, intro, reply, announcement.
7 distinct subject-line variants per call, in the 30-60 character sweet spot, with structure varied across the batch.
Compress a verbose draft to 20-50% shorter. Preserves names, numbers, deadlines, and URLs verbatim.
Sign up for a workspace — unlimited Domain Health, Inbox Placement, Mailbox Warmup, Blacklist Monitoring, and Phone Validation runs across every email and domain you ingest.