Best Email Deliverability Solutions - Page 11

How Many Email Deliverability Tools Products Does G2 Track?

Total Products under this Category: 249

Category Stats (Sep 2026)

  • Average Rating: 4.53/5 The average rating of products in this category, based on all submitted ratings
  • Top Trending Product: Turbosmtp (+3.14%) - Among all products in this category, Turbosmtp recorded the largest rating increase compared to last month

Last updated: September 01, 2026

How Does G2 Rank Email Deliverability Tools Products?

Why You Can Trust G2's Software Rankings:

  • 30 Analysts and Data Experts
  • 72,600+ Authentic Reviews
  • 249+ Products
  • Unbiased Rankings

G2's software rankings are built on verified user reviews, rigorous moderation, and a consistent research methodology maintained by a team of analysts and data experts. Each product is measured using the same transparent criteria, with no paid placement or vendor influence. While reviews reflect real user experiences, which can be subjective, they offer valuable insight into how software performs in the hands of professionals. Together, these inputs power the G2 Score, a standardized way to compare tools within every category.

G2 Grid® for Email Deliverability Tools

G2 Grid® for Email Deliverability Tools plotting products by satisfaction and market presence

Highlighted products: Constant Contact, Instantly, Apollo.io, lemlist, Brevo Marketing Platform, Warmy, Klaviyo, and Intuit Mailchimp Email Marketing.

Underlying data: [Grid® JSON](https://www.g2.com/categories/email-deliverability/grids.json?focus%5B%5D=constant-contact&focus%5B%5D=instantly&focus%5B%5D=apollo-io&focus%5B%5D=lemlist&focus%5B%5D=brevo-marketing-platform&focus%5B%5D=warmy&focus%5B%5D=klaviyo&focus%5B%5D=intuit-mailchimp-email-marketing)

WeDeliver.Email

WeDeliver.Email offers solution to increase email deliverability for Infusionsoft through third-party email service.

Average Rating: 5.0/5.0

Total Reviews: 1

How Do G2 Users Rate WeDeliver.Email?

  • Campaign Performance: 10.0/10 (Category avg: 8.8/10)
  • Content : 10.0/10 (Category avg: 8.8/10)
  • Brand Reputation: 10.0/10 (Category avg: 8.9/10)

Who Is the Company Behind WeDeliver.Email?

Who Uses This Product?

  • Company Size: 100% Small

What Are Recent G2 Reviews of WeDeliver.Email?

What Are G2 Users Discussing About WeDeliver.Email?

WPforms

WPForms is a user-friendly, drag-and-drop form builder plugin for WordPress, designed to help users create various types of forms, including contact forms, payment forms, surveys, and more, without any coding knowledge. With over 6 million active installations, WPForms is trusted by website owners, marketers, nonprofits, and developers to enhance site functionality and user engagement. Key Features and Functionality: - Drag & Drop Form Builder: Easily create custom forms with a simple drag-and-drop interface. - Pre-built Form Templates: Access over 2,000 templates to quickly set up forms for various purposes. - Responsive and Mobile-Friendly: Ensure forms look great and function seamlessly on all devices. - Smart Conditional Logic: Show or hide fields based on user behavior to create dynamic forms. - Payment Integrations: Accept payments through integrations with PayPal, Stripe, Square, and Authorize.Net. - Surveys and Polls: Conduct surveys and polls with real-time results and analysis. - File Uploads: Allow users to upload files directly through forms. - Multi-Page Forms: Break long forms into multiple pages to improve user experience. - Spam Protection: Utilize smart CAPTCHA and Honeypot methods to prevent spam submissions. Primary Value and Solutions Provided: WPForms simplifies the process of creating and managing forms on WordPress websites, enabling users to collect information, process payments, and engage with their audience effectively. Its intuitive interface and extensive features eliminate the need for technical expertise, allowing users to build professional forms quickly. By offering seamless integrations with popular payment gateways and email marketing services, WPForms enhances workflow efficiency and helps businesses grow by improving user interaction and data collection.

Average Rating: 5.0/5.0

Total Reviews: 1

Who Is the Company Behind WPforms?

Who Uses This Product?

  • Company Size: 100% Small

What Are Recent G2 Reviews of WPforms?

1OAKS

1OAKS is the Outbound Operating System — a Microsoft-native platform for sending cold email from your own Microsoft 365 mailbox without burning your domain. It verifies SPF, DKIM, and DMARC, writes each email with AI, and auto-stops the moment a prospect replies, bounces, or unsubscribes, while maintaining a defensible suppression list scoped to your account. Built for agencies and B2B teams that run outbound and need deliverability discipline — not another spray-and-pray sending tool.

Who Is the Company Behind 1OAKS?

Agillic

Agillic is the trusted Nordic marketing automation platform headquartered in Copenhagen, Denmark. Founded in 1999, Agillic helps organisations make personalisation perform, delivering meaningful, data-driven customer experiences that drive increased customer lifetime value, improved engagement, and measurable ROI – all while keeping costs and operational complexity in check. Operating exclusively on proprietary, EU-based infrastructure, Agillic empowers clients to maintain full digital sovereignty while ensuring adherence to the evolving EU regulatory landscape, including GDPR, ePrivacy, DMA, the EU AI Act, NIS2, and DORA. The Agillic platform activates zero- and first-party data to power 1:1 communication at scale. Its flexible data and content models, including headless content, allows users to create content once and dynamically tailor it across email, SMS, app, web, and paid media. Advanced orchestration tools unify customer journeys across all owned and paid channels, while built-in AI features assist with segmentation, message creation, and campaign optimisation. Agillic also integrates seamlessly with partner technologies for real-time product recommendations.

Average Rating: 4.2/5.0

Total Reviews: 25

How Do G2 Users Rate Agillic?

  • Has the product been a good partner in doing business?: 9.3/10 (Category avg: 9.0/10)

Who Is the Company Behind Agillic?

  • Seller: Agillic
  • Year Founded: 1999
  • HQ Location: Copenhagen, Denmark
  • LinkedIn® Page: www.linkedin.com
    58 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 52% Medium, 32% Small

What Do G2 Reviewers Say About Agillic?

AI-generated summary from verified user reviews

Pros
  • Users find Agillic's advanced analytics invaluable for driving customer engagement and improving campaign effectiveness.
  • Users appreciate the high-quality customer support of Agillic, which enhances their overall experience and satisfaction.
  • Users find Agillic to be easy to use, significantly enhancing their workflow and engagement capabilities.
  • Users commend Agillic for its helpful support, advanced personalization, and effective data-driven insights enhancing overall experience.
  • Users commend Agillic for its excellent integrations, enhancing data-driven insights and streamlining workflows for better engagement.
Cons
  • Users express concerns about the expensive pricing of Agillic, which may limit accessibility for smaller businesses.
  • Users often struggle with the difficult setup of Agillic, facing challenges due to its complex and steep learning curve.
  • Users report difficulties with integration in Agillic, finding the setup process complex and costly for small businesses.
  • Users face limited integration options with Agillic, which complicates setup and overall usability of the platform.
  • Users find the steep learning curve of Agillic challenging, complicating initial setup and overall usability.

What Are Recent G2 Reviews of Agillic?

What Are G2 Users Discussing About Agillic?

Alterable

Alterable provides services that enable businesses of all sizes to use email content personalization that make the customer journey compelling and engaging at scale.

Who Is the Company Behind Alterable?

Audit Fox

That expensive HubSpot audit PDF from last quarter? It’s already useless. We know. At RevX, we’ve spent a decade in the RevOps trenches, delivering over 800 projects. We've seen firsthand how quickly HubSpot instances turn into data graveyards, making static reports expensive paperweights. That’s why we built Audit Fox: a living, breathing health monitor for your portal. It’s the powerful HubSpot audit tool we always wished we had—fast, actionable, and always on. Audit Fox helps you stop putting out fires and start building a CRM that actually works. Tired of flying blind? Get your instant HubSpot health score: Instead of digging for problems, get an immediate 0-100 score on your HubSpot portal’s health. It’s a dead-simple way to see if you’re getting better or worse over time and finally have a real KPI for data quality to show your leadership. Overwhelmed by a giant to-do list? Audit Fox tells you what to fix first: Forget endless lists of "issues." Our HubSpot audit software uses risk-categorized issue Detection to surface the critical problems that are actively leaking revenue right now. You’ll know exactly what to tackle today and what can wait. Don’t just find problems, get solutions. Drill down with AI-powered Insights: Finding an issue is easy. Knowing how to fix it is what matters. Audit Fox gives you detailed breakdowns and clear, actionable recommendations for every problem it finds. Need to know if your automations are helping or hurting? See email & workflow performance Clearly: Finally, a unified view of your automation engine. See exactly how your workflows and emails are performing. Diagnose issues, spot trends against benchmarks, and turn your automation insights into actual wins. No time for a full system teardown? Run HubSpot audits on your terms: Need to check deal data quality before a board meeting? Or troubleshoot your marketing forms? As a flexible HubSpot data quality audit software, Audit Fox lets you run targeted scans on specific objects. Get the answers you need in minutes, not hours. Need to prove your point to the boss? Export stakeholder-ready HubSpot audit reports: When it's time to share, you're ready. Instantly generate clean PDF reports for your executive team or export raw CSV data for the spreadsheet warriors on your team. Track your audit history and show a clear before-and-after of your improvements. Audit Fox is THE CRM audit tool built for RevOps folks who live in HubSpot: HubSpot Admins RevOps, MarOps Specialists, SalesOps & SupportOps Teams, CRM Managers. Stop guessing. Start fixing. Audit Fox is the most powerful HubSpot audit tool you need.

Who Is the Company Behind Audit Fox?

  • Seller: RevX Inc
  • Year Founded: 2017
  • HQ Location: Bellevue, US
  • Twitter: @RevX2024
    1 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    24 employees on LinkedIn®

AY Mail

AY Mail is an email marketing software helps to send looking email messages, runs newsletters or targeted marketing campaigns.

Who Is the Company Behind AY Mail?

BetterMail

BetterMail is an NZ based email service provider with tools to create, send, share and track marketing emails.

Who Is the Company Behind BetterMail?

  • Seller: BetterMail
  • Year Founded: 2014
  • HQ Location: Auckland, NZ
  • Twitter: @WeAreBetterMail
    12 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    2 employees on LinkedIn®

Binding Signature

Binding Signature is a UK electronic signature and contract management platform that helps businesses draft, send, sign and manage agreements online. It combines electronic signatures, audit trails, AI-assisted contract review, bulk sending and REST API capabilities in one platform. Binding Signature offers a free Personal plan with 5 envelopes per month, with Business plans designed for teams requiring higher-volume agreement workflows. Binding Signature is provided by Binding Signature Ltd, company number 17345866, with its registered office in London. Business is £19 per user per month with unlimited envelopes. Enterprise starts at £39 per user per month. Current plans are published at https://bindingsignature.com/pricing. Enterprise includes SAML single sign-on and SCIM provisioning, and qualified electronic signatures when that flow is enabled for an envelope.

Who Is the Company Behind Binding Signature?

BriteVerify

BriteVerify is the contact validation solution that ensures a high-quality data foundation so you can generate more ROI from your sales, marketing, and service channels. BriteVerify is the industry's longest standing validation solution. Representing over a decade of experience and expertise, BriteVerify provides secure, scalable validation so you can build and maintain an actionable database, reach more people, and communicate more effectively. Invalid and problematic contact data is costing your business time and money. It hinders the success of your sales, marketing, and service channels and jeopardizes your customer experience. Validated contact data supports inbound and outbound communications to and from customer service, marketing, and sales to ensure a great experience for customers and prospects. Maintain a clean database your internal teams can rely on: • Validate contact information in real time. • Perform bulk validation of your stored data. • Check phone numbers and mailing addresses. Protect your sender reputation and improve deliverability: • Quickly identify and remove invalid contact information. • Perform email validation at speed and scale. Market, sell, and service more effectively: • Validate contact information at the point of entry. • Perform bulk validation to ensure contact information is continuously actionable. • Integrate with your existing marketing platforms. BriteVerify is part of the Validity portfolio, alongside DemandTools for Salesforce CRM data quality, and Litmus for email testing and deliverability — giving enterprise revenue and marketing teams a connected solution for data integrity, email performance, and program execution.

Who Is the Company Behind BriteVerify?

  • Seller: Validity Inc
  • Company Website:
  • Year Founded: 2018
  • HQ Location: Boston, Massachusetts
  • Twitter: @TrustValidity
    1,151 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    350 employees on LinkedIn®

Who Uses This Product?

  • Top Industries: Marketing and Advertising
  • Company Size: 13% Medium, 13% Small

What Do G2 Reviewers Say About BriteVerify?

AI-generated summary from verified user reviews

Pros
  • Users commend the high accuracy of BriteVerify, drastically improving email deliverability rates and reducing bounce rates.
  • Users value the reliability of BriteVerify, achieving a significant increase in email deliverability and sales growth.
  • Users appreciate the speed of BriteVerify, enjoying quick email checks and fast results that enhance efficiency.
  • Users appreciate the easy-to-use interface of BriteVerify, enabling quick email checks and clear results.
  • Users benefit from automation in BriteVerify, significantly boosting email deliverability rates and enhancing marketing effectiveness.
Cons
  • Users express frustration over email verification issues with BriteVerify, highlighting unclear messaging and rapid credit depletion.
  • Users express frustration over accuracy issues in BriteVerify's verification process, leading to inconsistent results and wasted credits.
  • Users are frustrated by cost concerns due to inconsistent verification processes and unclear billing in BriteVerify.
  • Users find that credit limitations can deplete quickly, leading to doubts about data accuracy and integration options.
  • Users report issues with credit system usage and clarity on risky emails, suggesting room for improvement.

What Are G2 Users Discussing About BriteVerify?

Caide

Caide is a full service campaign automations platform designed to learn about your business so it can automate the full prospect journey on your behalf. From lead souricng, validation, enrichment, research, copywriting, objection handling, deliverability management and so much more, Caide helps you scale your outreach so you can focus on your core business.

Who Is the Company Behind Caide?

  • Seller: Caide
  • Year Founded: 2023
  • HQ Location: Wilmington, US
  • LinkedIn® Page: www.linkedin.com
    4 employees on LinkedIn®

Campaign Enterprise

There are currently several editions of Campaign Enterprise: Standard, Professional, and Business. Each edition has the same functionality and unlimited email sending capability. The Business Edition extends ability further by allowing the distribution of functions to multiple computers and the ability to create "Clients" or virtual campaign systems if you have discrete customers that need a separate Campaign Enterprise system.

Who Is the Company Behind Campaign Enterprise?

Clever Elements

Clever Elements is an email marketing platform, offering tools to run successful email marketing campaigns.

Average Rating: 3.3/5.0

Total Reviews: 3

How Do G2 Users Rate Clever Elements?

  • Has the product been a good partner in doing business?: 8.3/10 (Category avg: 9.0/10)

Who Is the Company Behind Clever Elements?

  • Seller: Clever Elements
  • Year Founded: 2003
  • HQ Location: Berlin, DE
  • Twitter: @cleverelements
    886 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    2 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 75% Medium, 50% Small

What Are Recent G2 Reviews of Clever Elements?

What Are G2 Users Discussing About Clever Elements?

Cloud4J Email Builder

Email Builder helps increase the deliverability of your Salesforce emails and enables you to better track the status of your emails.

Who Is the Company Behind Cloud4J Email Builder?

Yukta Rustagi
YR
Researched and written by Yukta Rustagi
Updated October 3, 2024