INBOX PLACEMENT · 7 YEARS

Get cold email into the primary inbox — not spam.

Not another “cold email tips” page. The result buyers already want: mail that lands, domains that stay clean, and volume you can scale without burning the fleet. Free tools to diagnose it yourself — or we build the full stack for you.

LIVE CHECKS IN YOUR BROWSER · REAL DNS · NOTHING LOGGED · NO ACCOUNT REQUIRED
No signup required Nothing logged 7 years shipping fleets Flat quotes
0 yrsgetting mail to land
0+emails/day engineered
0%typical infra savings
<0%bounce ceiling
LIVE DELIVERY SIMULATION0 LANDED · 0 BOUNCED
01FULL TOOLBENCHFREE · NO SIGNUP

Everything pointed at one result: inbox, not spam.

Verify the list. Check SPF, DKIM, DMARC. Score the subject. Scan the body. Size the warmup. Same checks we run before a fleet goes live — free, nothing stored.

1. Diagnose

Run the free checkers on your domain and list. See what is broken in minutes.

2. Fix the stack

Auth, secondaries, warmup math — or we build the full fleet for you.

3. Send clean

Lower bounces, fewer spam hits, volume you can scale without burning domains.

VERIFY & EXPAND
02 Email Permutation GeneratorGenerate every common email pattern from a name and domain. Free email permutation tool for outreach. 03 Secondary Domain FinderFind lookalike secondary domains for cold email and check live availability with DNS lookups. · LIVE DNS
AUTHENTICATE
04 Domain Health & Blacklist CheckerCheck domain MX, SPF, DMARC and blacklist status across major DNSBLs. Free domain health checker. · LIVE DNS 05 SPF Record Generator & CheckerAudit a live SPF record or build a valid one. Free SPF generator and checker with lookup budget. · LIVE DNS 06 DMARC Generator & CheckerCheck live DMARC policy or generate a correct record. Free DMARC checker and generator. · LIVE DNS
WRITE & TEST
07 Subject Line GraderScore cold email subject lines for length, spam words, caps and fake Re: prefixes. Free subject line checker. 08 Email Spam CheckerScan email copy for spam trigger words, shorteners and risky patterns. Free spam word checker for cold email. 09 Cold Email Sequence GeneratorGenerate a 3-touch cold email sequence — pitch, bump and breakup — in direct, friendly or formal tone. 10 Email Inbox PreviewPreview how your from name, subject and preheader look in Gmail and Outlook before you send.
SCALE & PLAN
11 Email Warmup CalculatorCalculate inboxes, domains, ramp schedule and cost for your cold email volume. Free warmup planner.
MORE TOOLS
+ Cold Email Reply Rate CalculatorCalculate your cold email reply rate, benchmark it, and project meetings from volume. Free reply rate calculator. + Email Authentication CheckerCheck SPF, DKIM and DMARC for any domain in one live lookup. Free email authentication checker. + SPF CheckerFetch and audit the live SPF record for any domain. Free SPF checker with DNS lookup budget. + DKIM CheckerLook up DKIM public keys for common and custom selectors. Free DKIM record checker. + DMARC CheckerFetch the live DMARC policy for any domain. Free DMARC checker for p=none, quarantine and reject. + MX Record CheckerLook up live MX records and detect the email provider. Free MX record checker. + Email Signature GeneratorBuild a clean HTML email signature with name, title, links and social. Copy for Gmail, Outlook or Apple Mail. + Email Word CounterCount words, characters, sentences and reading time for cold email copy. Ideal length guidance included. + Cold Email Subject Line CheckerScore subject lines for length, spam words, caps and fake Re: prefixes. Free cold email subject checker. + Cold Email Spam Word CheckerFlag spam trigger phrases, URL shorteners, shouting and missing opt-out in cold email copy. + DMARC Record GeneratorBuild a correct DMARC TXT record for your domain in a few clicks. + Cold Email Template GeneratorGenerate three ready to copy cold email variants from a few simple inputs. + IP Blacklist CheckerCheck an IPv4 address against major DNS blacklists and see if it is listed or clean. + Email Subject Line GeneratorGenerate ready to copy cold email subject lines grouped by framework. + Email Bounce Rate CalculatorWork out your bounce rate and see if it is safe for cold email. + SPF Checker for Google WorkspaceCheck whether a Google Workspace sending domain has the right SPF record. Free SPF checker for Workspace admins and cold email senders. + DKIM Checker for Microsoft 365Check whether a domain publishes the two Microsoft 365 DKIM selectors. Free DKIM checker for 365 admins and cold email senders. + SPF Checker for Microsoft 365Check whether a domain's SPF record authorizes Microsoft 365 to send. Free SPF checker for Microsoft 365 admins and cold email senders. + DKIM Checker for Google WorkspaceCheck whether a domain publishes a Google Workspace DKIM key at the google selector. Free DKIM checker for Workspace admins and cold email senders. + DMARC Checker for Google WorkspaceFetch the live DMARC policy for a Google Workspace domain and read what it enforces. Free DMARC checker for Workspace admins and cold email senders. + DMARC Checker for Microsoft 365Fetch the live DMARC policy for a Microsoft 365 domain and read what it enforces. Free DMARC checker for 365 admins and cold email senders. + Bulk SPF, DKIM & DMARC CheckerCheck SPF, DKIM, DMARC and MX for up to 20 domains in one batch. Free bulk email authentication checker. + DMARC Report AnalyzerPaste a DMARC aggregate report XML and get totals, pass rates, per source results and plain English fixes. Free DMARC report analyzer. + BIMI CheckerCheck the BIMI record for any domain, its logo and certificate URLs, and whether DMARC passes the BIMI gate. Free BIMI checker. + MTA-STS & TLS-RPT CheckerCheck MTA-STS and TLS-RPT records and the hosted policy file for any domain. Free MTA-STS and TLS-RPT checker. + PTR Record Checker (Reverse DNS Lookup)Look up the PTR record for an IP address and check whether forward confirmed reverse DNS holds. Free PTR record checker. + Cold Email Follow-Up GeneratorGenerate follow-up emails that get replies: bumps, value adds and breakups, ready to copy. + Cold Email Icebreaker GeneratorGenerate personalized opening lines for cold emails from a real trigger, ready to copy. + SPF FlattenerFlatten a live SPF record into IP addresses so it fits under the 10 DNS lookup limit. + Domain Age CheckerCheck how old any domain is from its live registration record before you trust it for sending. + BIMI Record GeneratorGenerate the exact BIMI TXT record for your domain from your logo URL and certificate URL. + DKIM Record GeneratorGenerate a fresh DKIM key pair and the exact TXT record to publish for your domain. + Email Header AnalyzerPaste raw email headers to parse the Received chain, authentication results and delivery delays. + Cold Email Cost CalculatorWork out what a cold email sending stack costs per month, including domains, inboxes, platform and verification. + CAA Record CheckerCheck the live CAA records for any domain and see which certificate authorities are allowed to issue its certificates. + Redirect CheckerTrace any URL hop by hop: see every redirect, its status code and the final destination. Free redirect checker. + DNS Propagation CheckerSee whether a DNS change has spread: check what public resolvers around the world return for your domain right now. + SSL Certificate CheckerCheck the SSL certificate for any domain: expiry date, days left, issuer, the names it covers and whether it is self-signed or expired. Free SSL certificate checker. + SMTP CheckerTest whether a mail server answers, what it offers, and whether it accepts mail for an address. + DNS LookupLook up any DNS record for any domain live: A, AAAA, CNAME, MX, TXT, NS, SOA, CAA and SRV, with TTLs. Free DNS lookup tool. + Google Ads SimulatorPreview a Google Search ad exactly as it will appear. Real character limits, desktop and mobile preview, and a shareable link. + Whois LookupFind who owns a domain when the registry publishes it, plus the registrar, key dates, status and nameservers. + Email Mailbox ResellerMicrosoft 365 and Google Workspace inboxes at $3.5 each, fully set up and handed back within 24 hours.
02FULL STACK BUILDSFLAT QUOTES · 24H RESPONSE

Want the result without assembling it yourself?

01
You describe the outcome

Volume, audience, and where mail is dying today. A few minutes is enough.

02
Plan in 24 hours

Domains, inboxes, auth, warmup — mapped to your number, with a flat quote.

03
You send from a clean stack

Built and warmed. Most teams are live in 2–3 weeks.

DP
THE OPERATOR

Built by an operator, not a marketing team

This site is run by Dhaval Patel, who has worked in cold outreach for almost a decade and started in his first year of college. He has run outreach for 20 plus B2B clients in tier one countries, for companies worth $10M and up. After finding every client through his own cold email, he built his own outreach stack: lead data, email verification, a sending platform, and his own SMTP. His view is simple: deliverability is an infrastructure problem first, not a copywriting problem.

Almost a decade
in outreach
20+ B2B clients
served directly
Tier one countries only
where clients operate
Own data, verification and sending stack
built in house
Copied
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