Free cold email and deliverability tools
Ten battle-tested tools for B2B outbound teams. No signup. No rate limits. No credit card. Built by Navigent.
Deliverability
SPF Record Checker
Look up any domain's SPF record. Parse includes, IPs, and the all qualifier. Get warnings on RFC 7208 lookup-limit risks.
Open toolDMARC Record Generator
Configure policy, alignment, percentage, and reporting addresses. Copy a valid DMARC TXT record straight to DNS.
Open toolDKIM Record Lookup
Provide a selector and domain. We do a live DNS lookup and validate the public key length, algorithm, and encoding.
Open toolEmail Verifier
Validate any email address: syntax, MX records, disposable-domain detection, role-based flagging. Real-time.
Open toolCopy
Subject Line Analyzer
Score any subject line 0-100. Detect length, spam triggers, power words, personalization, urgency, and all-caps abuse.
Open toolSpam Words Checker
Paste subject + body. We highlight every spam-trigger word by category (financial, urgency, hyperbole) and score 0-100.
Open toolEmail Preheader Preview
See exactly how your subject and preheader render across Gmail Desktop, Gmail Mobile, Apple Mail, and Outlook inbox lists.
Open toolCold Email Generator
Pick persona, value prop, CTA, and tone. Get a structured cold-email draft using proven 2026 patterns.
Open toolStrategy
Best Send Time Calculator
Pick your timezone and recipients'. We calculate the exact send time in your local clock that lands at 10-11am local for each recipient.
Open toolCold Email ROI Calculator
Adjust list size, reply rate, meeting rate, close rate, deal size, and tool cost. See projected monthly revenue and ROI in real time.
Open toolAll this in one platform.
These tools run individually. Inside Navigent, they run together: 300M+ verified contacts, ICP scoring 0-100, multichannel sequencer, unified inbox, and SmartChat AI SDR.