If you're looking for an email service that protects your privacy and gives you control, Zivver is a good option. It integrates with Outlook and Gmail, uses end-to-end encryption and supports multi-factor authentication. Other features include secure file sharing, recall and proof of delivery, and it's geared for industries like health care and finance. It offers flexible pricing and custom branding options, too, so it can be adapted to different customers.
Another option is EtherMail, an email service built on Web3.0 technology that puts a priority on privacy and user control. It's got a blockchain-indexed inbox and a Privacy Wall to set preferences for content you want to see and don't want to see, and it rewards you for interacting with promotional emails. EtherMail also has a mobile app and tools called "Email-as-a-Wallet" and "PayMail" to send and receive cryptocurrencies and NFTs. It's good for people who want a more private email service that can also be more rewarding.
If you like a service that uses AI for more sophisticated security, Egress has features like zero-trust and behavioral-based detection. It's designed to protect you from phishing and data breaches with tools like Egress Defend and Egress Prevent. It's also got a service for sharing files securely and collaborating with others, so it's a good option for businesses that want to improve email security.
Last, Tessian is an AI-based service that spots and blocks advanced email attacks like phishing and email data theft. It works with Microsoft and Google email systems and offers features like behavioral and threat network analysis. Tessian's service can help cut email risks and integrate with your existing email infrastructure.