Best Zivver Alternatives & Competitors in 2025

Comprehensive Email Protection. 99.99% Spam Detection. Blocks phishing, viruses, malware and other email threats. .

Key SpamTitan features:

Comprehensive Spam Filtering User-Friendly Interface Regular Updates Customizable Policies

Open Source Free Trial $0.81 / Monthly (Per User)

Get your encrypted mailbox for free.

Key Tutanota features:

Privacy-Focused Open Source GDPR Compliant Ad-Free Experience

Open Source

The #1 email warming service to improve your deliverability by generating realistic and meaningful engagement to your emails. Easy-to-use solution to help you land in the main inbox instead of the spam folder. .

Key MailReach.co features:

Deliverability Improving Email Warming Meaningful Warming Content Smart Warming Algorithm

Visit website paid $19.5 / Monthly (Pro)

Easy to use end-to-end encrypted email. Secure and private email.

Key Mailfence features:

Custom Domains Calendar and Scheduler Calendar Management Calendar sync

freemium €2.5 / Monthly (Entry, 5GB emails,10 aliases,)

Web- and IMAP-based email service. 2GB cost 1€/month.

Key Posteo features:

Privacy-focused End-to-End Encryption Sustainability Affordable Pricing

Disroot is a platform providing online services based on principles of freedom, privacy, federation and decentralization.

Key Disroot features:

Privacy Focused Open Source Ad-Free Community-Driven

mailbox.org offers a secure e-mail account for home and business use. The domain name, me@mailbox.

Key mailbox.org features:

Privacy Focused No Ads Feature-Rich Affordable Pricing

Privacy-aware email app for Mac & iOS.

Key Canary Mail features:

Security Unified Inbox Smart Features User Interface

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

Key ProtonMail features:

End-to-End Encryption Zero Access to User Data Swiss Privacy Laws Open Source

freemium €5.0 / Monthly (user - 5 GB)