InstAddr Alternatives [Page 3]

Secure email with absolutely no compromises. Get your free encrypted email account today.

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Web-based IMAP email client

Open Source

Warm up your cold email inbox, and never land in spam anymore!

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Scala Hosting email hosting provides the global audience with business email hosting to enable flexible messaging.

Zoho Mail is a secure, encrypted, and enterprise-ready email solution, a suite of apps tailor-made for your organization's needs.

freemium $1.0 / Monthly (per user)

Mail.be Virtual office

MrMail offers flexible Zimbra Hosting packages suitable for everyone, from single home user to a...

IONOS, your digital partner for cloud solutions and web hosting, supporting your needs from websites, domains, servers, and more.

Send millions of transactional or commercial emails using your own bulk smtp server with 24/7 support at affordable price.

Organize your world. Outlook’s email and calendar tools help you communicate, stay on top of what matters, and get things done.

Guerrilla Mail is a web-based app that provides a disposable and anonymous email address. Users of the service are not required to set up an account in order to send or receive emails.

Open Source

20 Minute Mail is an anonymous, temporary email service that allows you to generate random emails instantly without registration.

Vocus.io is a productivity tool for Gmail available as a Chrome extension.

maildrop is a Mail delivery agent used by the Courier Mail Server. The maildrop MDA also includes filtering functionality. maildrop receives mail via stdin and delivers in both Maildir and mbox formats.