List of the Top Email Testing Tools for Windows in 2026

Stripo is an email builder that empowers teams and individuals across various sectors to effortlessly create responsive email templates without needing any HTML expertise. Choose from 1,700+ ready-to-use templates, and send your finished email with one click to any of 90+ ESPs and clients, including Mailchimp, Campaign Monitor, SendGrid, and HubSpot. With such extensive options and capabilities — including built-in AI that covers the full creative cycle, from campaign creation to copy and images — Stripo is an invaluable tool for anyone looking to elevate your email marketing efforts.

Established in 2012 by a key contributor to the DMARC specification, dmarcian is committed to enhancing global email security by making DMARC readily available through exceptional tools, educational materials, and expert assistance. Employed by thousands and endorsed by support teams worldwide, our DMARC Management Platform provides critical insights and oversight regarding the usage of your email domains. This platform equips organizations of all sizes with actionable information and alerts that facilitate the implementation of DMARC and its complementary technologies, SPF and DKIM, as well as the capability to visualize email delivery metrics and maintain a secure domain infrastructure. Addressing email security weaknesses, bolstering domain and brand reputation, and fulfilling the increasing requirements for DMARC compliance are all achievable with our top-tier services. By harnessing our offerings, businesses can navigate the complexities of email security with confidence and reliability.