Email tools directory
Every email tool worth knowing, reviewed in one place
288 tools across 14 categories - warm-up, inbox placement, verification, authentication, outreach, sending platforms, template testing and monitoring. Use the filters and open any tool for a full review.
- 288
- Tools reviewed
- 14
- Categories
- 100%
- Hand-checked
Every email tool worth reviewing
288 tools
Accenture Song
Paid
Salesforce Marketing Cloud at enterprise scale.
Review tool →ActiveCampaign
Free trial
Campaign, lifecycle and transactional sending platform.
Review tool →Allegrow
Free trial
Warm-up and deliverability tooling for senders protecting inbox placement.
Review tool →
Amazon SES
Paid
Low-cost raw sending infrastructure on AWS.
Review tool →Amplemarket
Free trial
Warm-up and deliverability tooling for senders protecting inbox placement.
Review tool →Apache SpamAssassin
Free
Seed testing and spam checks that show where a campaign actually lands.
Review tool →Apollo.io
Freemium
Prospect database plus sequencing in one platform.
Review tool →AtData
Freemium
List verification that removes invalid, risky and trap addresses before sending.
Review tool →Audience Serv
Paid
International email/audience targeting.
Review tool →Autobound
Free trial
Outbound sequencing and sales engagement at scale.
Review tool →Avex
Paid
Shopify Plus agency with Klaviyo retention practice.
Review tool →AWeber
Free trial
Campaign, lifecycle and transactional sending platform.
Review tool →Barracuda Central
Free
Reputation, blocklist and postmaster monitoring.
Review tool →beehiiv
Free trial
Campaign, lifecycle and transactional sending platform.
Review tool →Belkins
Paid
Owns Folderly.
Review tool →Benchmark Email
Free trial
Campaign, lifecycle and transactional sending platform.
Review tool →BIMI Group
Free
Reference material and an inspector for BIMI logo records.
Review tool →Bird (SparkPost)
Free trial
Campaign, lifecycle and transactional sending platform.
Review tool →Bloomreach
Free trial
Campaign, lifecycle and transactional sending platform.
Review tool →Bluetext
Paid
B2B enterprise campaigns incl. email.
Review tool →BounceCheck
Freemium
List verification that removes invalid, risky and trap addresses before sending.
Review tool →Bouncer
Freemium
GDPR-focused verification with toxicity and deliverability kits.
Review tool →BounceZero
Freemium
List verification that removes invalid, risky and trap addresses before sending.
Review tool →Braze
Free trial
Campaign, lifecycle and transactional sending platform.
Review tool →Brevo
Freemium
Email, SMS and chat marketing with transactional sending included.
Review tool →BriteVerify
Freemium
List verification that removes invalid, risky and trap addresses before sending.
Review tool →Callbox
Paid
Large-scale B2B appointment setting.
Review tool →Campaign Monitor
Free trial
Campaign, lifecycle and transactional sending platform.
Review tool →Campaigner
Free trial
Campaign, lifecycle and transactional sending platform.
Review tool →CaptainVerify
Freemium
List verification that removes invalid, risky and trap addresses before sending.
Review tool →Chronos Agency
Paid
Email+SMS for growth-stage DTC under $30M.
Review tool →CIENCE
Paid
1,200+ staff, SDR-as-a-service + GO data platform.
Review tool →Cisco Talos Intelligence
Free
Check the reputation of a sending IP or domain.
Review tool →Clearout
Freemium
List verification that removes invalid, risky and trap addresses before sending.
Review tool →Cleverly
Paid
LinkedIn-first + cold email, from $397/mo.
Review tool →Close
Free trial
Outbound sequencing and sales engagement at scale.
Review tool →Cloudflare DMARC Management
Freemium
SPF, DKIM and DMARC setup, reporting and monitoring.
Review tool →CloudTask
Paid
Marketplace for sales agencies/SDRs.
Review tool →Coalition Technologies
Paid
SEO/PPC/email for eCommerce.
Review tool →ColdIQ
Paid
AI/tech-stack driven outbound, deliverability-heavy.
Review tool →Commerce Pundit
Paid
ECommerce development + email.
Review tool →Constant Contact
Free trial
Campaign, lifecycle and transactional sending platform.
Review tool →ConsultMyApp
Paid
Mobile CRM/engagement, Braze & Customer.io partner.
Review tool →Courier
Free trial
Campaign, lifecycle and transactional sending platform.
Review tool →Customer.io
Paid
Behavioural messaging driven by product events.
Review tool →Cyntexa
Paid
Salesforce Marketing Cloud implementations.
Review tool →DeBounce
Freemium
List verification that removes invalid, risky and trap addresses before sending.
Review tool →Deloitte Digital
Paid
Braze Global Platinum partner, 200+ certifications.
Review tool →Directive
Paid
SaaS performance marketing incl. email nurture.
Review tool →Disruptive Advertising
Paid
Performance marketing incl. email.
Review tool →DMARC Report (DuoCircle)
Freemium
SPF, DKIM and DMARC setup, reporting and monitoring.
Review tool →DMARCeye
Freemium
SPF, DKIM and DMARC setup, reporting and monitoring.
Review tool →dmarcian
Freemium
DMARC reporting and enforcement guidance from the people who helped write it.
Review tool →DMARCLY
Freemium
SPF, DKIM and DMARC setup, reporting and monitoring.
Review tool →DMARCTrust
Freemium
SPF, DKIM and DMARC setup, reporting and monitoring.
Review tool →DMi Partners
Paid
Email acquisition + affiliate for eCommerce.
Review tool →Dotdigital
Free trial
Campaign, lifecycle and transactional sending platform.
Review tool →Drip
Free trial
Campaign, lifecycle and transactional sending platform.
Review tool →E-goi
Free trial
Campaign, lifecycle and transactional sending platform.
Review tool →EasyDMARC
Freemium
DMARC, SPF and DKIM management with readable dashboards.
Review tool →EBQ
Paid
Outsourced sales & marketing teams.
Review tool →Elastic Email
Free trial
Campaign, lifecycle and transactional sending platform.
Review tool →Email Element
Freemium
Reputation, blocklist and postmaster monitoring.
Review tool →Email Hippo
Freemium
List verification that removes invalid, risky and trap addresses before sending.
Review tool →Email Industries
Paid
Acquired by Ziff Davis 2025.
Review tool →Email on Acid
Paid
Pre-send testing across clients with accessibility checks.
Review tool →Email Uplers
Paid
Design, coding, campaign ops.
Review tool →Emailable
Freemium
Fast verification with a clean API and deliverability monitoring.
Review tool →EmailConsul
Freemium
Seed testing and spam checks that show where a campaign actually lands.
Review tool →EmailListValidation
Freemium
List verification that removes invalid, risky and trap addresses before sending.
Review tool →EmailListVerify
Freemium
List verification that removes invalid, risky and trap addresses before sending.
Review tool →EmailOctopus
Free trial
Campaign, lifecycle and transactional sending platform.
Review tool →EmailOversight
Freemium
List verification that removes invalid, risky and trap addresses before sending.
Review tool →EmailWarmup
Free trial
Warm-up and deliverability tooling for senders protecting inbox placement.
Review tool →Ematic Solutions
Paid
Martech consultancy, Iterable/Braze partner.
Review tool →Emma (Marigold)
Free trial
Campaign, lifecycle and transactional sending platform.
Review tool →EngageBay
Free trial
Campaign, lifecycle and transactional sending platform.
Review tool →Enginy
Free trial
Warm-up and deliverability tooling for senders protecting inbox placement.
Review tool →Epsilon
Paid
Enterprise email/loyalty/data (Publicis).
Review tool →Expandi
Free trial
Outbound sequencing and sales engagement at scale.
Review tool →Experte Spam Checker
Free
Seed testing and spam checks that show where a campaign actually lands.
Review tool →Flowium
Paid
Email+SMS retention for mid-market DTC.
Review tool →Folderly
Paid
Managed deliverability service with audits and remediation.
Review tool →Fortra Agari
Freemium
SPF, DKIM and DMARC setup, reporting and monitoring.
Review tool →Fuel Made
Paid
Shopify + Klaviyo lifecycle.
Review tool →GetResponse
Free trial
Campaign, lifecycle and transactional sending platform.
Review tool →GlockApps
Freemium
Seed-based inbox placement testing with spam-filter analysis.
Review tool →GMass
Free trial
Outbound sequencing and sales engagement at scale.
Review tool →GoDMARC
Freemium
SPF, DKIM and DMARC setup, reporting and monitoring.
Review tool →Google Postmaster Tools
Free
Gmail's own view of your domain reputation and spam rate.
Review tool →Growth Engine X
Paid
Clay-based high-volume cold email.
Review tool →HetrixTools (Blacklist Monitor)
Freemium
Reputation, blocklist and postmaster monitoring.
Review tool →Homestead Studio
Paid
Klaviyo retention for DTC.
Review tool →Horizontal Digital
Paid
Salesforce & Sitecore experience consultancy.
Review tool →HTML Email Check
Free
Seed testing and spam checks that show where a campaign actually lands.
Review tool →HubSpot
Freemium
CRM-first marketing, sales and service platform.
Review tool →Hunter
Free trial
Outbound sequencing and sales engagement at scale.
Review tool →iContact
Free trial
Campaign, lifecycle and transactional sending platform.
Review tool →Ignite Visibility
Paid
Digital marketing incl. email/CRM.
Review tool →Inbox Monster
Freemium
Seed testing and spam checks that show where a campaign actually lands.
Review tool →InboxAlly
Paid
Engagement-based reputation repair using a managed seed network.
Review tool →InboxArmy
Paid
Email/SMS only.
Review tool →InboxEagle
Freemium
Seed testing and spam checks that show where a campaign actually lands.
Review tool →InboxWarm
Free trial
Warm-up and deliverability tooling for senders protecting inbox placement.
Review tool →Inboxy
Free trial
Warm-up and deliverability tooling for senders protecting inbox placement.
Review tool →Infraforge (Salesforge)
Free trial
Campaign, lifecycle and transactional sending platform.
Review tool →Instantly
Paid
Cold email sending with unlimited mailbox rotation.
Review tool →Instantly VIP
Paid
Managed cold-email service by Instantly, from $2,000/mo.
Review tool →IPWarmup
Free trial
Warm-up and deliverability tooling for senders protecting inbox placement.
Review tool →Ironpaper
Paid
B2B demand gen + email nurture.
Review tool →Iterable
Free trial
Campaign, lifecycle and transactional sending platform.
Review tool →Keap
Free trial
Campaign, lifecycle and transactional sending platform.
Review tool →Kickbox
Freemium
List verification that removes invalid, risky and trap addresses before sending.
Review tool →Kit (ConvertKit)
Free trial
Campaign, lifecycle and transactional sending platform.
Review tool →Klaviyo
Freemium
Ecommerce marketing automation built on customer data.
Review tool →Klenty
Free trial
Outbound sequencing and sales engagement at scale.
Review tool →Kuno Creative
Paid
HubSpot partner, demand gen.
Review tool →La Growth Machine
Free trial
Outbound sequencing and sales engagement at scale.
Review tool →Leadbird
Paid
Pay-per-lead cold email.
Review tool →Leadium
Paid
Boutique omnichannel outbound.
Review tool →lemlist
Paid
Personalised multichannel sequences with images and video.
Review tool →Lemwarm
Free trial
Warm-up and deliverability tooling for senders protecting inbox placement.
Review tool →LevelUp Leads
Paid
Outbound for tech/technical ICPs.
Review tool →Lilo Social
Paid
Full-funnel eCommerce.
Review tool →Listrak
Free trial
Campaign, lifecycle and transactional sending platform.
Review tool →Litmus
Paid
Render previews across clients plus analytics and QA workflow.
Review tool →Maestra
Free trial
Campaign, lifecycle and transactional sending platform.
Review tool →Mail-Tester
Freemium
A free 0-10 score for a single test message.
Review tool →MailAdept
Paid
Ongoing deliverability support: audit, remediation, monitoring.
Review tool →MailboxValidator
Freemium
List verification that removes invalid, risky and trap addresses before sending.
Review tool →MailBrace
Paid
End-to-end sending infrastructure & managed deliverability.
Review tool →Mailchimp
Freemium
Broad email marketing platform for small and mid-sized businesses.
Review tool →Maildoso
Free trial
Warm-up and deliverability tooling for senders protecting inbox placement.
Review tool →MailerCheck
Freemium
Seed testing and spam checks that show where a campaign actually lands.
Review tool →Mailercloud
Free trial
Campaign, lifecycle and transactional sending platform.
Review tool →MailerLite
Free trial
Campaign, lifecycle and transactional sending platform.
Review tool →MailerSend
Free trial
Campaign, lifecycle and transactional sending platform.
Review tool →Mailflow
Free trial
Warm-up and deliverability tooling for senders protecting inbox placement.
Review tool →Mailforge (Salesforge)
Free trial
Campaign, lifecycle and transactional sending platform.
Review tool →MailGenius
Free trial
Warm-up and deliverability tooling for senders protecting inbox placement.
Review tool →Mailgun
Free trial
Campaign, lifecycle and transactional sending platform.
Review tool →Mailhardener
Freemium
SPF, DKIM and DMARC setup, reporting and monitoring.
Review tool →Mailivery
Free trial
Warm-up and deliverability tooling for senders protecting inbox placement.
Review tool →Mailjet
Free trial
Campaign, lifecycle and transactional sending platform.
Review tool →Mailmad
Free trial
Warm-up and deliverability tooling for senders protecting inbox placement.
Review tool →Mailmend
Free trial
Warm-up and deliverability tooling for senders protecting inbox placement.
Review tool →Mailmeteor (Spam Checker)
Freemium
Seed testing and spam checks that show where a campaign actually lands.
Review tool →Mailmodo
Free trial
Campaign, lifecycle and transactional sending platform.
Review tool →MailMonitor
Free trial
Warm-up and deliverability tooling for senders protecting inbox placement.
Review tool →Mailpool
Free trial
Warm-up and deliverability tooling for senders protecting inbox placement.
Review tool →MailReach
Paid
Warm-up plus spam testing for outbound mailboxes.
Review tool →Mailshake
Free trial
Outbound sequencing and sales engagement at scale.
Review tool →MailSlurp
Free trial
Warm-up and deliverability tooling for senders protecting inbox placement.
Review tool →MailSoar
Paid
Outbound deliverability recovery, 500+ companies.
Review tool →MailToaster
Free trial
Warm-up and deliverability tooling for senders protecting inbox placement.
Review tool →Mailtrap
Freemium
Safe email sandbox for staging and QA.
Review tool →MailUp
Free trial
Campaign, lifecycle and transactional sending platform.
Review tool →Mailwarm
Free trial
Warm-up and deliverability tooling for senders protecting inbox placement.
Review tool →Marketo (Adobe)
Free trial
Campaign, lifecycle and transactional sending platform.
Review tool →Martal Group
Paid
Outsourced sales for B2B tech, since 2009.
Review tool →Mattered
Paid
ECommerce email/SMS lifecycle.
Review tool →Maverick
Free trial
Warm-up and deliverability tooling for senders protecting inbox placement.
Review tool →Mayple
Paid
Vetted-expert marketplace incl. email marketing.
Review tool →memoryBlue
Paid
SDR outsourcing + cold calling.
Review tool →MERGE
Paid
Martech + SFMC/Braze implementations.
Review tool →Merkle (dentsu)
Paid
CRM/CDP and SFMC powerhouse.
Review tool →Microsoft SNDS
Free
Outlook's sender data for IPs you control.
Review tool →MillionVerifier
Paid
Low-cost bulk verification with a simple credit model.
Review tool →Mimecast DMARC Analyzer
Freemium
SPF, DKIM and DMARC setup, reporting and monitoring.
Review tool →Mixmax
Free trial
Outbound sequencing and sales engagement at scale.
Review tool →MJML
Free
Open-source markup that compiles to responsive email HTML.
Review tool →Moosend
Free trial
Campaign, lifecycle and transactional sending platform.
Review tool →MultiRBL
Free
Reputation, blocklist and postmaster monitoring.
Review tool →Munvo
Paid
Marketing tech integration (Adobe, SAS, SFMC).
Review tool →MXToolbox
Freemium
The default lookup tool for MX, SPF, DKIM, DMARC and blocklists.
Review tool →MyEmailVerifier
Freemium
List verification that removes invalid, risky and trap addresses before sending.
Review tool →NeverBounce
Paid
Bulk and real-time verification with ESP integrations.
Review tool →New Breed
Paid
HubSpot Elite, B2B revenue ops.
Review tool →Noltic
Paid
Salesforce Summit partner.
Review tool →Omnisend
Free trial
Campaign, lifecycle and transactional sending platform.
Review tool →One 10 Media
Paid
Email+SMS for sub-$10M eCommerce brands.
Review tool →Operatix
Paid
SDR services for B2B software.
Review tool →Oracle Eloqua
Free trial
Campaign, lifecycle and transactional sending platform.
Review tool →Ortto
Free trial
Campaign, lifecycle and transactional sending platform.
Review tool →Outbound System
Paid
Done-for-you cold email incl. infra & warmup.
Review tool →Outreach
Paid
Enterprise sales engagement and revenue workflow platform.
Review tool →OutreachBloom
Paid
Done-for-you email, $2,400/mo flat.
Review tool →Overloop
Free trial
Outbound sequencing and sales engagement at scale.
Review tool →PersistIQ
Free trial
Outbound sequencing and sales engagement at scale.
Review tool →Postbox Consultancy Services
Paid
Technical deliverability, ISP relations, policy.
Review tool →Postmark
Paid
Transactional email with a strong deliverability reputation.
Review tool →Postmark SpamCheck
Free
Seed testing and spam checks that show where a campaign actually lands.
Review tool →Postmastery
Free trial
Warm-up and deliverability tooling for senders protecting inbox placement.
Review tool →Postmastery
Paid
Deliverability analytics + consulting for high-volume senders.
Review tool →Power Digital
Paid
Growth marketing incl. lifecycle/email.
Review tool →PowerDMARC
Freemium
SPF, DKIM and DMARC setup, reporting and monitoring.
Review tool →Primeforge (Salesforge)
Free trial
Campaign, lifecycle and transactional sending platform.
Review tool →Privy
Free trial
Campaign, lifecycle and transactional sending platform.
Review tool →Proofpoint Email Fraud Defense
Freemium
SPF, DKIM and DMARC setup, reporting and monitoring.
Review tool →Proofy
Freemium
List verification that removes invalid, risky and trap addresses before sending.
Review tool →QuickEmailVerification
Freemium
List verification that removes invalid, risky and trap addresses before sending.
Review tool →QuickMail
Free trial
Outbound sequencing and sales engagement at scale.
Review tool →Red Sift OnDMARC
Freemium
SPF, DKIM and DMARC setup, reporting and monitoring.
Review tool →Rejoiner
Paid
Lifecycle email software + managed agency hybrid.
Review tool →Reoon Email Verifier
Freemium
List verification that removes invalid, risky and trap addresses before sending.
Review tool →Reply.io
Free trial
Outbound sequencing and sales engagement at scale.
Review tool →Resend
Free trial
Campaign, lifecycle and transactional sending platform.
Review tool →Retainful
Free trial
Campaign, lifecycle and transactional sending platform.
Review tool →Retention Commerce
Paid
Klaviyo email+SMS retention.
Review tool →SalesBread
Paid
Boutique, 1 qualified lead/day promise.
Review tool →Salesforce Marketing Cloud
Free trial
Campaign, lifecycle and transactional sending platform.
Review tool →Salesforge
Free trial
Outbound sequencing and sales engagement at scale.
Review tool →Saleshandy
Free trial
Outbound sequencing and sales engagement at scale.
Review tool →Saleshandy (Spam Checker)
Freemium
Seed testing and spam checks that show where a campaign actually lands.
Review tool →SalesHive
Paid
US-based SDRs, month-to-month.
Review tool →Salesloft
Free trial
Outbound sequencing and sales engagement at scale.
Review tool →SalesNash
Paid
Outbound lead gen.
Review tool →SalesRoads
Paid
Phone-first outbound + email.
Review tool →Salted Stone
Paid
HubSpot Elite, lifecycle & CRM.
Review tool →SAP Emarsys
Free trial
Campaign, lifecycle and transactional sending platform.
Review tool →Scalero
Paid
Lifecycle email design & CRM engineering.
Review tool →Selzy
Free trial
Campaign, lifecycle and transactional sending platform.
Review tool →Sender
Free trial
Campaign, lifecycle and transactional sending platform.
Review tool →Sender Score
Free
Reputation, blocklist and postmaster monitoring.
Review tool →SenderReputation.org
Free
Reputation, blocklist and postmaster monitoring.
Review tool →SendForensics
Free trial
Warm-up and deliverability tooling for senders protecting inbox placement.
Review tool →SendGrid
Freemium
Transactional and marketing sending infrastructure at scale.
Review tool →SendKit
Freemium
Seed testing and spam checks that show where a campaign actually lands.
Review tool →Sendlane
Free trial
Campaign, lifecycle and transactional sending platform.
Review tool →Sendmarc
Freemium
SPF, DKIM and DMARC setup, reporting and monitoring.
Review tool →SharpSpring
Free trial
Campaign, lifecycle and transactional sending platform.
Review tool →Six & Flow
Paid
HubSpot Elite, ABM + email.
Review tool →Slalom
Paid
Salesforce consulting incl. Marketing Cloud.
Review tool →SmartBug Media
Paid
HubSpot Elite partner, lifecycle email.
Review tool →Smartlead
Paid
Multi-mailbox cold outreach with an agency-friendly API.
Review tool →SmartReach
Free trial
Warm-up and deliverability tooling for senders protecting inbox placement.
Review tool →SmartSites
Paid
Full digital, email & SMS division.
Review tool →SMTP.com
Free trial
Campaign, lifecycle and transactional sending platform.
Review tool →SMTP2GO
Free trial
Campaign, lifecycle and transactional sending platform.
Review tool →Snov.io
Free trial
Outbound sequencing and sales engagement at scale.
Review tool →Soap Media
Paid
Digital agency with email practice.
Review tool →SocketLabs
Free trial
Campaign, lifecycle and transactional sending platform.
Review tool →Sticky Digital
Paid
Beauty, wellness, F&B DTC retention.
Review tool →Stripo
Freemium
Drag-and-drop template builder that exports to any ESP.
Review tool →Structured
Paid
ECommerce growth agency, Klaviyo + paid social.
Review tool →Suped
Free trial
Warm-up and deliverability tooling for senders protecting inbox placement.
Review tool →SyncGTM
Freemium
Seed testing and spam checks that show where a campaign actually lands.
Review tool →The Email Marketers
Paid
Full-scope retention for enterprise DTC.
Review tool →Thrive Internet Marketing Agency
Paid
Full digital with email marketing services.
Review tool →Tinuiti
Paid
Largest independent performance agency, enterprise CRM/email.
Review tool →Top Growth Marketing
Paid
Klaviyo + paid media, full-funnel.
Review tool →TrulyInbox
Free trial
Warm-up and deliverability tooling for senders protecting inbox placement.
Review tool →Underground Ecom
Paid
8-10 figure brands (AG1, Huda Beauty).
Review tool →Unify
Free trial
Outbound sequencing and sales engagement at scale.
Review tool →UniOne
Free trial
Campaign, lifecycle and transactional sending platform.
Review tool →Unspam
Freemium
Seed testing and spam checks that show where a campaign actually lands.
Review tool →Unspam (services)
Paid
Deliverability audits & remediation, $1K-$4K audits.
Review tool →URIports
Freemium
SPF, DKIM and DMARC setup, reporting and monitoring.
Review tool →Validity Everest
Paid
Enterprise deliverability monitoring, certification and insight.
Review tool →Valimail
Paid
Automated DMARC enforcement and hosted SPF/DKIM.
Review tool →Verifalia
Freemium
List verification that removes invalid, risky and trap addresses before sending.
Review tool →Verticurl (WPP)
Paid
Marketo/Eloqua/CRM marketing ops.
Review tool →Walker Sands
Paid
B2B tech marketing incl. email/demand gen.
Review tool →Warmbox
Free trial
Warm-up and deliverability tooling for senders protecting inbox placement.
Review tool →Warmforge
Free trial
Warm-up and deliverability tooling for senders protecting inbox placement.
Review tool →Warmup Inbox
Free trial
Warm-up and deliverability tooling for senders protecting inbox placement.
Review tool →WarmupIP
Free trial
Warm-up and deliverability tooling for senders protecting inbox placement.
Review tool →Warmy API
Paid Warmy
Automate warm-up, testing and reporting from your own stack.
Review tool →Warmy Best Time To Send
Free Warmy
Data-backed send windows by audience, industry and time zone.
Review tool →Warmy DMARC Generator
Free Warmy
Build a valid DMARC record with guided policy choices.
Review tool →Warmy DMARC Monitoring
Free trial Warmy
Readable DMARC reporting with alignment fixes, not raw XML.
Review tool →Warmy Email Seed List
Free trial Warmy
500K+ rotating seed accounts that show exactly where your campaign lands.
Review tool →Warmy Email Verification
Free trial Warmy
List validation that removes invalids, traps and risky addresses.
Review tool →Warmy Email Warm-Up
Free trial Warmy
AI-driven warm-up that builds mailbox and domain reputation automatically.
Review tool →Warmy Free Deliverability Test
Free Warmy
Free placement and authentication check in a couple of minutes.
Review tool →Warmy Mailbox Calculator
Free Warmy
Work out how many mailboxes and domains your volume needs.
Review tool →Warmy Signature Builder
Free Warmy
Lightweight, render-safe email signatures.
Review tool →Warmy SPF Generator
Free Warmy
Assemble a clean SPF record from the services you actually send with.
Review tool →Warmy Template Checker
Free Warmy
Score an email's content for spam risk before you send it.
Review tool →WebFX
Paid
Full digital, large email practice.
Review tool →Woodpecker
Paid
Cold email for agencies and small teams, with sending safeguards.
Review tool →Word to the Wise
Paid
Veteran deliverability & anti-spam consultancy (Laura Atkins).
Review tool →Yesware
Free trial
Outbound sequencing and sales engagement at scale.
Review tool →YOCTO
Paid
Retention-side: subscriptions, dunning, churn, LTV.
Review tool →Zeliq
Free trial
Outbound sequencing and sales engagement at scale.
Review tool →ZeroBounce
Freemium
Email validation with scoring, activity data and inbox placement add-ons.
Review tool →Zettler Digital
Paid
Klaviyo Master Elite eCommerce growth.
Review tool →Zoho Campaigns
Free trial
Campaign, lifecycle and transactional sending platform.
Review tool →About this directory
How we pick and review every tool
- How are tools chosen for this directory?
- We list tools our deliverability team sees in real customer stacks - warm-up, verification, authentication, sending, testing and monitoring. Warmy's own tools are marked so you always know what is ours.
- Do I need all of these tools?
- No. Most teams need one sending platform, one verification step, authentication monitoring and a warm-up and placement layer. Warmy covers the deliverability side of that list in one platform, which is why many customers drop two or three separate vendors.
- Which tools are free?
- Google Postmaster Tools, Microsoft SNDS, Talos, MJML and every Warmy free tool cost nothing. Search for "free" in the sidebar search box, or open any tool to see its pricing on the review page.
- Can I suggest a tool?
- Yes - send it to our team through the contact page and we will review it for the next update.
Most of this list in one platform
Warm-up, inbox placement testing, email verification and DMARC monitoring run together inside Warmy - so reputation, placement and authentication are covered without stitching three vendors together.
7-day trial - every customer gets a dedicated deliverability expert.