Best Soverin Alternatives & Competitors in 2025

Email at its best, new from Basecamp.

paid Free Trial $99.0 / Annually

Horde Groupware is a free, enterprise ready, browser based collaboration suite.

VoIPstudio is an award-winning VoIP system that offers businesses of all sizes a scalable communication solution. It’s inexpensive, easy-to-use, offers a full suite of PBX features, and is fully integrated for CRM.

Try for free paid Free Trial $4.99 / Monthly (User)

Mailo is an email client where you can send and receive emails to and from anyone with an email address.

Mailpile is a modern, fast web-mail client with user-friendly encryption and privacy features.

Open Source

Disposable email address application.

Webmail service. Powered by RainLoop.

All your E-mail, from all your accounts, in one place. Cypht is like a news reader, but for E-mail.

Open Source

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

freemium €5.0 / Monthly (user - 5 GB)

Independent, secure, and easy to use email address.

Save time and scale faster with accessible, secure, and reliable cloud email services. A proven multitenant email solution for telcos and service providers.

freemium $1.3 / Monthly (Per mailbox)

NeoMail is a web-based mail client that allows users to access their mail spools and send messages.

Self-hosted server for the ProtonMail client.

Turing. Modern email has arrived. Turing Email supports email providers including Google Apps, Outlook, Yahoo Mail, iCloud Mail, and AOL Mail. Join our exclusive network.