Best Email Testing Tools for Small Business

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."

Partner with the email service trusted by developers and marketers for time-savings, scalability, and delivery expertise. The Twilio SendGrid Email API and proprietary Mail Transfer Agent (MTA), intuitive console, powerful features, and email experts make it easy to ensure all your email gets delivered in seconds and without interruption. Whether you’re sending 100 emails or 100 billion, SendGrid is built to scale, while maximizing inbox placement and protecting your reputation as a trusted sender. Monitor engagement data and optimize deliverability with our Deliverability Insights dashboard. Integrate with our RESTful APIs and SMTP in minutes, with sample code libraries available in 7 languages, interactive docs, templates, and more.

Mailgun offers a robust email automation platform tailored for developers. By utilizing Mailgun, users can leverage a comprehensive cloud-based email service designed for sending, receiving, and monitoring emails generated through their applications and websites. The platform is compatible with a variety of programming languages such as Python, Ruby, PHP, Java, and C#. Additionally, Mailgun's tracking capability enables users to monitor all outgoing emails effectively, helping to minimize the likelihood of being classified as spam. This functionality not only enhances email deliverability but also provides valuable insights into user engagement.

Mailtrap is an email API and SMTP service provider built for developer and product teams. It is designed to send transactional and bulk emails with a strong focus on high deliverability rates and reliable performance. Quick integration is enabled through official SDKs for major programming languages, ready-to-use code snippets, and extensive resources, including broad documentation, blog guides, and video tutorials. The platform is backed by 24/7 support from a team of engineers and deliverability experts. Mailtrap’s robust infrastructure is built to handle high-volume sending, allowing businesses to scale confidently. High inboxing rates are ensured with features like dedicated IPs, auto warm-up, separate sending streams, and multi-tenant accounts.

Folderly is an AI-driven email deliverability solution focused on monitoring, testing for spam, and resolving issues that hinder your email outreach. Our mission is to empower marketers to boost their sales by facilitating the delivery of emails that enhance revenue generation. With over half of all business emails failing to land in the inbox, falling victim to spam filters can result in financial setbacks and lost sales opportunities. Folderly ensures you stay out of that unfortunate statistic. By avoiding blacklists and circumventing spam filters, we guarantee your messages reach the inboxes of your intended recipients. Built with a comprehensive approach, Folderly aims to help businesses maximize the returns on their marketing investments. Whether you seek to improve the deliverability of emails sent from multiple addresses or wish to proactively avert spam issues, Folderly serves as an essential platform for ensuring your communications successfully reach their destinations. Our tools and insights are designed to optimize your email campaigns, ultimately driving better engagement and higher conversion rates.

EmailGuard is a comprehensive platform for email deliverability that ensures your messages never end up in the spam folder again. It provides an array of tools focused on enhancing email delivery rates while maintaining compliance with industry standards. With EmailGuard, users can seamlessly connect and oversee their domain's SPF, DKIM, and DMARC records, and if any are absent, they can easily search for, create, and validate them all in one convenient interface. The platform features robust blacklist monitoring capabilities to keep track of your domain, IP addresses, and sending servers, alerting you promptly if you find yourself on a blacklist and offering guidance on how to be removed. Additionally, EmailGuard allows you to mask your primary domain with various secondary domains, utilizing either a shared IP pool or your own dedicated IP address for more control. Notably, EmailGuard also comes equipped with an email testing feature that evaluates 162 distinct data points, subjecting your emails to a range of deliverability assessments and spam filters to ensure optimal performance. This extensive functionality makes EmailGuard an invaluable resource for anyone serious about email marketing success.

Suped offers a comprehensive email deliverability solution that unifies multiple security and monitoring tools into a single platform to safeguard domains against email spoofing and phishing. It transforms complex DMARC reports into clear, actionable steps that help users maintain domain integrity and improve email placement. The platform includes features such as inbox placement testing, spam complaint tracking, and real-time alerts to ensure emails reach their intended recipients. Suped supports and monitors critical email authentication standards including DMARC, SPF, DKIM, MTA-STS, and BIMI to enhance sender reputation across providers. Additionally, it tracks domain and IP reputation continuously and detects blocklisting early to prevent deliverability issues. Backed by industry-leading reliability with 99.99% uptime and average alert times under five seconds, the platform is built for scale. Integration with numerous popular marketing and analytics tools, such as HubSpot and Salesforce Marketing Cloud, consolidates data for comprehensive deliverability insights. Suped’s intelligent copilot provides tailored recommendations to optimize sending practices for better email performance.

Experience enhanced deliverability insights, increased efficiency, and boosted performance through our all-inclusive email solution. The core of our operations lies in data and insights that drive every decision we make. Engage in unlimited seed testing across more than 90 ISPs globally. We compile millions of spam traps to provide you with unparalleled intelligence regarding your program's deliverability. For the first time, access a comprehensive overview of all essential SMS deliverability KPIs through one user-friendly interface. Are your established policies being effectively implemented at this very moment? This question keeps many marketers awake at night and poses significant legal risks for brands. With Oversight mailstream tracking, you can gain greater assurance. Our platform offers visual renderings for over 80 contemporary email clients, encompassing 98% of emails dispatched worldwide. Integrated features like robust link validation, dark mode views, and HTML editing, alongside a genuine deliverability assessment, are all part of the package. This truly marks a transformative shift in your pre-send workflow, making it more efficient and reliable than ever before. Embrace this revolution to elevate your email marketing strategy to new heights.

SMTP Debug is a free and secure tool that can be used to diagnose SMTP connectivity issues. This tool connects your SMTP server and initiates a testing session. It then provides a detailed log detailing the interaction between servers. This tool simplifies troubleshooting, and helps resolve sending issues, whether you're using popular services like SendGrid or Google SMTP. Your information is private and secure with end-to-end encrypted communication. The tool does not store session logs or credentials. You can enhance security further by changing your password or using the optional SMTP Blackhole feature.