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Pinpoint email issues before you hit "send". Secure your emails from malicious actors and ensure your email delivery to the inbox. | It is an Email Tracking for Gmail and GSuite, adds the double check marks to your mail if it is read by recipient (Just like WhatsApp), Receives real-time pop-ups notification on your desktop when your emails are opened. |
Inbox Placement; Reputation Check; DMARC Analytics; Bounce Analytics; Template Editor; Automatic Tests; Monitoring and Alerts | See which emails have been opened; No need to cross-check with your colleagues; Perfect for recruiters and salespeople; Eliminates guesswork; Very easy to use no learning curve; Unlimited email tracking for Gmail and Google Workspace (G Suite); Real-time notification when your emails are opened; Priority support |
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Free email verifier & checker to validate email addresses instantly. Reduce bounces and verify emails in real time.

Sidemail is an all-in-one email delivery platform for startups that makes sending emails simple. It has everything for delivering and managing emails – email API, transactional emails, email marketing and automation, contact management, no-code email editor, email templates, subscribe forms, and more. Perfect for teams & developers that want reliable deliverability without the bloat. We're based in the EU and GDPR compliant.

Use AI to find prospects that need you, automatically craft personalized cold emails for each, and scale effortlessly

Protect your domain with Dmarclytics. Run free DMARC, SPF, and DKIM checks to stop spoofing, enhance email authentication, and improve deliverability with powerful monitoring tools.

It is a free and open-source mail transfer agent that routes and delivers electronic mail. It is Wietse Venema's mail server that started life at IBM research as an alternative to the widely-used Sendmail program. Now at Google, Wietse continues to support it.

It is an open source IMAP and POP3 email server for Linux/UNIX-like systems, written with security primarily in mind. It is an excellent choice for both small and large installations. It's fast, simple to set up, requires no special administration and it uses very little memory.

It adds scheduled sending and the easiest, most integrated email reminders to Gmail, helping you reach Inbox Zero.

250ok is an email deliverability tools company that produces a Software‐as‐a‐Service (“SaaS”) platform to monitor and measure the deliverability of email networks. These networks consist of companies sending various forms of messages including marketing, transactional, share, and others from various platforms.

It helps build lasting business relationships, right from your inbox. A sales engagement platform designed for sales professionals and account managers.

It is an all-in-one tool for email deliverability to make your Email Channel Reliable. It raises your sender reputation by interacting with real people in any language and helps you to hit the inbox of your prospect. Full automation.