CounterMail vs Tuta Mail

CounterMail is an email service that applies encryption automatically and says each message is encrypted before leaving the user's computer. It supports communication with OpenPGP-compatible email users and provides an IMAP server for third-party email clients. Premium subscriptions include 4 GB of encrypted storage per mailbox, with additional storage available for a one-time fee. Other listed tools include dynamic aliases, filters, notifications, an autoresponder, password manager, secure forms, and an XMPP chat server. CounterMail lists SSL-MITM protection, diskless web servers, SSL encryption and authentication, and anonymous email headers. Its privacy policy says it does not log IP addresses and keeps email bodies and attachments encrypted; its servers are in Sweden, as is the maker's headquarters. The service supports Android, Linux, macOS, web, and Windows. Pricing is listed from $3.29/user/mo, with a 10-day trial for people who already know a CounterMail user. New registrations are closed.

Tuta Mail is an encrypted email service with apps for Android, iOS, Windows, macOS, and Linux, plus browser access. It includes an encrypted calendar and supports offline use; full offline support is listed among paid-plan benefits. The free plan provides 1 GB of storage, one calendar, and three labels. Revolutionary costs €3 a month billed annually and includes 20 GB, 15 extra email addresses, and three custom domains. Legend costs €8 a month billed annually and includes 500 GB, 30 extra email addresses, and 10 custom domains. Paid plans support calendar sharing and event invitations; desktop clients can import EML or MBOX files. Tuta says its clients are open source and auditable, and its data is stored on its servers in Germany in ISO 27001 certified data centers. The service uses post-quantum cryptography, and mail protocol support is listed as none. Family multi-user support can be activated through support on paid plans. Priority email support replies within one business day on Legend.