Both Tutanota and Zoho Mail are strong email service providers with a focus on security and privacy. Tutanota excels in end-to-end encryption and open-source applications, making it ideal for users prioritizing maximum privacy. Zoho Mail offers a more comprehensive suite of features, including flexible storage options, robust customer support, and effective spam filtering, making it suitable for businesses and users seeking a balance of security and functionality.
| Attribute | Tutanota | Zoho Mail |
|---|---|---|
| Email Encryption (End-to-end) | AES 128 military-grade encryption combined with RSA 2048; encrypts subject lines, email bodies, attachments, calendars, and address books. | Offers end-to-end encryption, ensuring only the sender and recipient can read the email content. Emails within the Zoho system are encrypted when stored and during transmission. SSL/TLS, S/MIME, and PGP are used for encryption. |
| Data Security and Privacy Policies | GDPR compliant, minimizes data collection, no ads or user data collection, data stored in ISO 27001-certified data centers in Germany. | Implements security measures like two-factor authentication (2FA), OAuth 2.0, and monitors accounts for unusual activity. Data is split into fragments and encrypted before being stored. GDPR and HIPAA compliant; does not mine user data for ads. Access to customer data is heavily restricted. |
| Custom Domain Support | Available in paid plans only; Revolutionary and Essential plans support up to three custom domains, Legend and Advanced plans support up to ten. | Allows users to create emails using a domain they own or purchase from them. Easy to set up a custom domain. |
| Email Storage Capacity | 1 GB in free plan; 20 GB in Revolutionary plan; 500 GB in Legend plan; 50 GB per user in Essential business plan; 1 TB per user in Unlimited plan; compresses encrypted emails. | Free plan includes 5GB of storage per user. Paid plans offer options like 5GB, 10GB, 30GB, 50GB, and 100GB per user. Additional storage can be purchased in units of 25 GB, 50 GB, 100 GB, and 200 GB. |
| Email Sending Limits | Paid basic account: 300 messages per hour, 1000 messages per day; each recipient counts as a separate message. | Free plan has a 25MB attachment limit. Paid plans offer larger attachment limits, such as 250MB, 1GB. |
| Mobile App Availability and Features | Open-source apps for Android and iOS; push notifications, swipe gestures, full-text search; Google-free version available on F-Droid for Android. | Offers mobile apps for both Android and iOS. The mobile apps provide access to email, calendar, contacts, tasks, and notes. |
| Calendar and Contacts Integration | Integrated encrypted calendars and contacts; contacts can be imported using vCard 3.0; sharing of encrypted calendars available in paid plans. | Seamlessly integrates with Zoho Calendar and Contacts. Users can access and manage their calendar, contacts, notes, and tasks directly from the email interface. |
| Spam Filtering Effectiveness | Includes a spam filter that automatically moves spam emails to the spam folder; checks emails against DNS spam lists. | Incorporates advanced spam filtering algorithms using AI and machine learning to block unwanted emails. Analyzes email content, subject line, attachments, and sender reputation. Uses community data to identify spam emails and identifies half a million spam emails per hour on average. Users can control spam and phishing protection settings. |
| Ease of Use and User Interface | User-friendly interface similar to Gmail and Yahoo Mail; customizable web client; interface optimized for smaller screens in mobile apps. | Known for its clean, ad-free, and user-friendly interface. The platform is intuitive and easy to navigate. |
| Customer Support Quality and Response Time | Customer support inquiries accepted via Tutanota email for Premium users; free users do not have access to customer support. | Offers 24/7 email-based technical support and 24/7 phone support in twenty countries. There's an extensive knowledge base and FAQ section available. No live chat option. |
| Pricing and Subscription Plans | Free plan with 1 GB of storage; paid personal plans: Premium, Revolutionary, and Legend; business plans: Essential, Advanced, and Unlimited. | Offers a free plan with limited features. Paid plans include Mail Lite, Mail Premium, and Workplace, with varying features and storage. Mail Lite costs around $1 per user per month. Mail Premium costs around $4 per user per month. Workplace costs around $3 per user per month. |
| Compliance Certifications (e.g., GDPR, HIPAA) | GDPR compliant; data stored in ISO 27001 certified data centers; aims for HIPAA compliance. | GDPR and HIPAA compliant. Has ISO 22301, ISO 9001, ISO/IEC 27001, ISO/IEC 27701, ISO/IEC 27017 and SOC 2 Type II certifications. |