Directory/Free tiers/Deliverability
Deliverability tools decide whether your outreach reaches a candidate's inbox or dies in spam — a problem most recruiters discover only after reply rates have already collapsed. This page lists only permanent free tiers, not timed trials.
What counts as free
Deliverability · Verification
Email verification with API and never-expiring credits.
250 free credits, then from $32.30 for 5K
Checked Nov 4, 2026Pricing details
Deliverability · Verification
Deliverability suite for cold email: inbox placement tests, blacklist and DMARC monitoring, spam checks, domain masking and contact verification.
Free plan, paid from $49/mo
Free plan EmailGuard has a free forever plan with 1 domain, 3 email accounts, 50 contact verification credits, weekly blacklist and authentication checks.
Checked Nov 4, 2026Pricing details
Deliverability
Email deliverability testing and inbox placement monitoring.
Free plan, paid from $79/mo
Free plan Inbox Insights (placement tests before you launch) has a free tier with 2 tests a month, then $79/month for 100 tests, or $799 a year.
Checked Nov 4, 2026Pricing details
Outreach · Deliverability and Lead generation
Cold email with built-in warmup, inbox rotation, AI reply sorting and a hosted MCP server, free plan, paid from $34/mo.
Free plan, paid from $34/mo
Free plan Free is $0 for 200 contacts, 500 emails a month, unlimited email accounts with warmup on 2 inboxes and 25 Fenn AI credits.
Checked Oct 27, 2026Pricing details
Deliverability
Inbox placement and spam testing across Gmail, Outlook and Yahoo, plus DMARC, blocklist and Google Postmaster monitoring in one account.
Free plan, paid from $59/mo
Free plan GlockApps has a Free plan at $0 with 2 spam test credits, 10,000 DMARC messages, 5 uptime monitors and 1 IP reputation monitor.
Checked Nov 4, 2026Pricing details
Deliverability
Google's free dashboard showing your spam rate, domain and IP reputation, authentication and delivery errors for mail sent to Gmail users.
Free
Checked Nov 4, 2026Pricing details
Deliverability · Outreach
Email marketing platform with a first-party MCP.
Free plan, paid from $10/mo
Free plan Free is $0 forever for 1,000 contacts and 12,000 emails a month.
Checked Nov 4, 2026Pricing details
Deliverability
Free MX, SPF, DKIM and blacklist lookups, plus paid Delivery Center plans for DMARC reporting, inbox placement and blacklist monitoring.
Free plan, paid from $129/mo
Free plan MxToolbox has a Free plan at $0/month with weekly blacklist monitoring of the top 30 lists for 1 domain.
Checked Nov 4, 2026Pricing details
Outreach · Deliverability and Lead generation
Cold email platform with unlimited inboxes, AI warmup, an AI lead finder and a sentiment sorted unified inbox.
Free plan, paid from $30/mo
Free plan ReachInbox has a free plan with 50 active leads, 250 emails a month, 3 email accounts and 14 days of warmup.
Checked Nov 4, 2026Pricing details
Deliverability
Pre-send spam checker that scores your email, tests inbox placement, previews it in 50+ clients and suggests fixes with an AI assistant.
Free plan, paid from $5/mo
Free plan The Free plan costs $0 and includes 21 tests a month (5 spam tests, 3 inbox placements, 3 device previews, 5 screenshots and 5 heatmaps).
Checked Nov 4, 2026Pricing details