Proton Mail
Secure your company’s communications with Proton Mail — the business email solution trusted by over 50,000 organizations. With end-to-end encryption built in, your internal and external communications stay confidential by default. Proton Mail helps your business meet GDPR, HIPAA, and other compliance standards, while giving you full control over your data under strong Swiss privacy laws. Empower your team with encrypted email and calendar, support for your custom email domains, professional branding, and simple migration from providers like Google Workspace or Microsoft 365 — no IT team required.
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Greatmail
Reliable cloud-based email hosting includes features such as spam filtering, antivirus protection, ample storage, and webmail access. It seamlessly integrates with Outlook as well as various other POP3/IMAP clients. For users with high sending needs, it offers a robust SMTP service designed for responsible senders. Additionally, there is an outbound relay service tailored for transactional emails, marketing campaigns, newsletters, and diverse applications. The infrastructure supports dedicated email servers, clustering, and multiple IP load balancing to accommodate high-volume senders effectively. With a fixed monthly fee, users benefit from unlimited sending capabilities and reputation monitoring. Greatmail stands out as an email service provider (ESP) focused on delivering business-class email hosting, SMTP hosting, and specialized email servers. Furthermore, for ISPs, software developers, and cloud architects, we also create custom solutions featuring dedicated IP servers and load-balanced configurations with multiple servers to meet specific processing needs. This commitment to adaptability ensures that all clients receive the best possible service, tailored to their unique requirements.
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Posteo
Posteo is a Berlin-based email provider that prioritizes privacy and sustainability, offering an ad-free service powered entirely by green energy. For just €1 per month, users can enjoy a secure, encrypted email account with features like email syncing across devices, encrypted address books, and calendar synchronization. Posteo operates with complete transparency, ensuring that no personal data is collected or tracked, and it protects user privacy by offering encryption options that are simple to activate. The company has long championed privacy rights and eco-friendly practices, operating without third-party ad involvement. Whether you're managing sensitive emails, contacts, or schedules, Posteo delivers high levels of privacy and efficiency in an environmentally conscious manner, making it a top choice for those who value both security and sustainability. With a focus on empowering users to maintain control over their data, Posteo offers an experience free from external surveillance or advertising interruptions.
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black.com
Our email hosting service offers top-tier encryption for your communications, employing zero-access encryption methods such as AES-GCM-256 combined with RSA-OAEP-4096 for key sharing, ensuring that only you can access your email contents while we cannot retrieve them at any point. Every aspect of your email experience is safeguarded, including subjects, headers, message bodies, attachments, drafts, and even push notifications. Based in Austria, we are dedicated to exceptional data security and harness Swiss infrastructure, which allows us to operate under some of the strongest privacy laws globally, especially in contrast to many US tech firms. When you sign up, you receive an initial 25 GB of storage, with an additional 2 GB added to your account every year, ensuring that with regular use, you will always have ample space for your emails and attachments. As a result, you can communicate confidently, knowing your privacy is our utmost priority.
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