Tutanota is the preferred choice for users prioritizing security and privacy with end-to-end encryption and minimal data collection. Microsoft Outlook is better suited for users who need extensive storage, seamless integration with other Microsoft services, and robust customer support.
| Attribute | Tutanota | Microsoft Outlook |
|---|---|---|
| Name | Tutanota | Microsoft Outlook |
| Email Encryption (End-to-End) | Features end-to-end encryption using AES 128-bit military-grade encryption with RSA 2048 bit for internal communication and AES 128-bit for external recipients. | Offers end-to-end encryption, securing emails from client to recipient. Uses TLS by default and provides S/MIME and Microsoft Purview Message Encryption (MPME) for enhanced security. |
| Data Privacy and Security | Emphasizes data minimization and privacy by design, collecting only essential data. All data is stored in ISO 27001 certified data centers located in Germany, adhering to strict data protection laws. | Part of Microsoft 365, offering encryption in transit and at rest, multi-factor authentication, and advanced security policies. Compliant with GDPR, HIPAA, and FedRAMP. |
| Email Storage Capacity | 1 GB of storage in its free plan. Paid plans provide more storage, such as 10 GB in the Teams and Pro plans. | Outlook.com offers 15 GB of free email storage. Microsoft 365 subscribers get 100 GB. Attachments utilize OneDrive storage, which includes 5 GB of free storage. |
| Custom Domain Support | Available in paid plans. | Allows creating and purchasing custom domains. Users can purchase a new domain or use an existing one. |
| Calendar Integration | Includes an encrypted calendar for secure scheduling. | The Outlook Calendar API allows developers to integrate calendar features into their applications to enhance scheduling efficiency and automate event reminders. |
| Contact Management | Offers contact management features. Contacts can be imported using vCard 3.0. | Allows managing contacts, adding them from different sources, creating contact lists and groups, and organizing contacts into folders. |
| Mobile App Availability | Offers mobile apps for iOS and Android. | Available for iOS and Android devices, managing email, calendar, and contacts in one place. |
| Spam Filtering Accuracy | Includes a spam filter. | Examines sender credibility, email structure, and content, capturing over 99% of spam messages. |
| User Interface and Experience | Provides a user-friendly interface. | Offers tools for calendar appointments, reminders, meetings, and contact maintenance. |
| Email Organization Features (Labels, Folders) | Offers email organization features such as labels and folders. | Uses folders to organize messages and rules to sort emails. Categories are used as labels for emails, calendar events, tasks, and contacts. |
| Customer Support Quality | Limited customer support. | IONOS provides reliable support and easy setup when registering a domain. |
| Pricing and Subscription Options | Free plan with 1 GB storage. Paid plans include Premium, Teams, and Pro. Pricing varies depending on the plan and additional features. | Free for personal use. Basic Microsoft 365 subscription is $1.99 per month. |
| Ratings | Not available | Not available |
| Pros | End-to-end encryption, Data privacy and security, Encrypted calendar, Open source mobile apps, User-friendly interface | Offers end-to-end email encryption, Provides high levels of data privacy and security, Allows custom domain support, Offers calendar integration, Provides contact management features, Has mobile app availability, Features accurate spam filtering, Offers tools for calendar appointments, reminders, meetings, and contact maintenance |
| Cons | Limited customer support, 1 GB storage for free accounts may not be sufficient | Not available |