Protonmail
Proton Mail is a privacy-focused email app and web service for sending, receiving, and organizing encrypted messages across your devices.
What is Protonmail?
Proton Mail is an encrypted email service that helps people send, receive, and manage email with a stronger focus on privacy and account security. It is used by individuals, families, and professionals who want a full inbox experience with mail folders, labels, search, multiple accounts, and notifications while keeping their communications inside the Proton ecosystem. On Mac, users may encounter it as a dedicated desktop app or as a site-specific wrapper created by WebCatalog, which opens the Proton Mail web app in a separate window from a regular browser. Proton Mail also supports password-protected messages, custom domains on eligible plans, and integrated use with other Proton services such as Calendar and Drive. It fits best for users who want everyday email access with privacy-oriented features rather than a traditional local mail client setup.
Key features
- Send and receive encrypted email from a dedicated inbox interface
- Organize messages with folders, labels, and conversation views
- Switch between multiple Proton Mail accounts
- Protect messages with password-protected email when needed
- Use private inbox categories and notification features
- Access mail in a standalone desktop-style window instead of a browser tab
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Safety overview
Status: Mostly safe
This is legitimate email software. Because it handles your inbox, it can display message content, attachments, contacts, and account details as part of normal use. If you no longer use Proton Mail through this WebCatalog app, removing it is usually low risk, but you may lose saved sessions, local website data, and notification settings for this desktop wrapper.
Recommendation: Keep it if you actively use Proton Mail in WebCatalog and want quick desktop-style access to your mailbox. If you use Proton Mail in a normal browser or another mail setup instead, you can remove this wrapper app and reinstall it later if needed.
Common paths
/Applications/Protonmail.app~/Applications/Protonmail.app
Cache paths
~/Library/Caches/com.webcatalog.juli.custom-1709291688362
Support paths
~/Library/Application Support/com.webcatalog.juli.custom-1709291688362
Preference paths
~/Library/Preferences/com.webcatalog.juli.custom-1709291688362.plist
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