Compare Email on Acid vs. SMTP Debug Tool

We work with you to make sure your inbox providers don't send spam emails to your email. In just a matter of weeks, our clients have seen their open rates increase by more than DOUBLE! High-engagement recipients open emails and scroll down as they read. This should be done for almost all emails that are opened, as long as the content is not longer than the page. If a recipient takes an email from spam and goes out of their way, it is telling the inbox provider that they made a mistake. Inbox providers will be able to tell if you move an email from the promotions folder into the primary inbox that you don't agree with their sorting criteria. It and other similar emails should go directly to the primary mailbox. It shows that the recipient is interested in your email content. The inbox provider can interpret this as "This email is extremely important, please do not send it to spam."

Constant Contact delivers for small businesses and nonprofits with powerful tools that simplify and amplify digital marketing. Whether it's driving sales, growing a customer base or engaging an audience, we deliver the performance and guidance to build strong connections and generate powerful results.

ActiveCampaign is the platform of choice for intelligent marketing automation. ActiveCampaign is trusted by customers in over 170 countries to power their personalized marketing, transactional email, and one-to-1 CRM interactions. ActiveCampaign has the highest customer satisfaction rating in Marketing Automation, E-Commerce Personalization and Landing Page Builders on G2.com. It is also one of a few software solutions that have over 10,000 positive reviews. ActiveCampaign was also named the Top Rated E-Mail Marketing Software by TrustRadius. ActiveCampaignoffers a free trial.

Knak is the enterprise-grade, no-code solution that transforms how marketing teams build emails and landing pages — without relying on developers or agencies. With a robust modular design system, real-time collaboration, and native integrations with platforms like Marketo, SFMC, and Eloqua, Knak eliminates production bottlenecks while preserving brand governance. Empower your team to deliver high-performance assets quickly, securely, and at scale — no code required. Trusted by global brands to streamline campaign execution and accelerate time-to-market.

AI Sales Rep - Your Next Salesperson Might Not Be A Person at All Identify and Influence Your Engaged Website Visitors into Sales-Ready Leads – Before You Commit a Single Working Hour. Lower Funnel, Higher Value Leads: Using our advanced WebID +Person identification technology, we uncover and identify the most engaged visitors to your site. These are the prospects we focus on, ensuring maximum impact for your sales efforts. - Detailed Prospect Data: We gather 40 points of data about each prospect, including first name, last name, email address, and more. - Engaged, But Anonymous: These prospects are conducting online research but haven’t met with your sales team yet. - Crucial Sales Funnel Position: These visitors are deep in your sales funnel, spending time on your key ‘buying pages’ but remaining unknown to you. They are the ones most likely to convert into appointments. - AI-Driven Engagement: Our AI Sales Rep identifies and gently engages with these visitors, influencing them to express interest. The process is fully automated, so your sales team only needs to engage with the interested leads—your low-hanging fruit. Leverage the power of AI to turn your website visitors into meeting-ready leads effortlessly.

Drip is an award-winning, feature-rich, marketing automation, ecommerce CRM and email platform that allows marketers and businesses to get to know customers at scale. Drip has a variety of features that will help marketers see their customers clearly. Tracking tools, automated workflows and multichannel marketing are just a few of the many features offered by Drip. It integrates natively with many of the most popular marketing tools.

GetResponse offers an all-in-one marketing platform designed to equip marketers, solopreneurs, creators, coaches, and small business owners with powerful, user-friendly tools for email marketing, automation, and content monetization. With more than 25 years of experience, GetResponse supports audience growth and engagement through email campaigns, enables seamless course creation and sales, and helps turn passion into profit. It’s the ideal choice for building personal brands, selling products and services, and creating loyal customer communities.

HubSpot is an AI-powered customer platform with all the software, integrations, and resources you need to connect your marketing, sales, and customer service. HubSpot's connected platform enables you to grow your business faster by focusing on what matters most: your customers. HubSpot CRM is more than just a tool. It's the lifeblood of your business. Our CRM is the ultimate solution to empower your team to create deeper customer relationships. It transforms how you interact with your clients. It offers a seamless integrated platform for sales and marketing, as well as customer service. HubSpot CRM gives you unparalleled insight into your customer interactions. It's all organized in a simple, intuitive dashboard that will increase the efficiency of your team. Our platform is designed to grow with your business, providing scalable solutions to adapt to changing business needs. HubSpot CRM also offers a robust, free version that is packed with essential features. This makes it the ideal choice for ambitious businesses. HubSpot CRM is the future of customer management. Every interaction with customers is an opportunity to grow. Get a demo to learn about our premium software, or get started with our full suite of free tool.

Built on monday.com's flexible low-code/no-code framework, WORK OS, monday sales CRM is a fully customizable CRM that empowers business owners and sales teams to manage every aspect of their sales cycle and customer data in one centralized place They can capture leads from any source, easily manage their contacts’ information, and track every deal's status so that no opportunities slip through the cracks. Create customizable dashboards to confidently analyze your data and get a clear overview of your sales activities and performance to optimize your sales processes or adjust your strategy, without the need for an IT expertise. monday sales CRM eliminates hours of repetitive work by automating manual processes using no-code and seamlessly integrates with the tools sales teams already use. Beyond this, nurture all your client relationships by managing post-sale activities such as onboarding and their projects. Send out personalized invoices and quotes with ease. Unlike traditional CRMs, monday sales CRM is extremely user-friendly, providing your sales team with a CRM they'd actually want to use.

EasyDMARC is a cloud-based DMARC solution for securing domains and email infrastructure, protecting organizations against phishing attacks, and more: Brand Protection Our email protection SaaS platform stops hackers from sending phishing emails to customers from company names, gaining access to accounts, and stealing personal information. Increased Email Deliverability EasyDMARC informs receiving mail servers that emails are legitimate and authentic, ensuring they’re delivered to the inbox instead of blocked or sent to spam. Visibility Into Cyber Threats EasyDMARC helps to successfully monitor every aspect of your email authentication and enforce effective protection from phishing attacks thanks to its advanced reporting capability. Business Email Compromise (BEC) Protection Most people have seen emails pretending to be from the CEO, CFO, or another executive in their organization. EasyDMARC prevents business email compromise and keeps your company reputation on the highest level․ EasyDMARC’s deliverability tool, EasySender, covers all the aspects of email deliverability. The variety of features on the platform cover email list verification, mailbox warmup, and inbox placement.