When comparing Mailbird 2.0 vs ProtonMail, the Slant community recommends Mailbird 2.0 for most people. In the question“What are the best e-mail clients for Windows?” Mailbird 2.0 is ranked 4th while ProtonMail is ranked 10th. The most important reason people chose Mailbird 2.0 is:
This allows you to funnel all emails from all accounts into one unified folder, so you don't have to move between different accounts.
Specs
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Pros
Pro Unified Inbox
This allows you to funnel all emails from all accounts into one unified folder, so you don't have to move between different accounts.
Pro Excellent UI/UX
The UI looks simple but is customizable. UX is also simple and easy to use.
Pro Undo send
Pro Free and paid versions
Users who only need to use the basic features of the app have a free version available, though it does limit to only 1 account. There is a paid Mailbird Pro version that does extend functionality and allows for unlimited accounts but it does cost $1.00 a month or $45.00 as a one time fee.
Pro Apps that extend functionality
Mailbird 2.0 supports separate apps that can extend the programs functionality such as Sunrise Calendar, which allows one to add multiple calendars in one view or Evernote which allows for easy not taking and sharing.
Pro Clear interface
Pro App side bar
This allows you to have one layout with your navigation bar, message list, email convos and productivity apps in view at once so you can work your email and productivity tools synchronously.
Pro Contacts manager
This allows you to easily manage all your email contacts with all critical details in one place. Create groups too. All your contacts in one place and synced with your different email contact providers.
Pro Snooze
Pro Unlimited email accounts
There is no limit to the number of email accounts you can manage from Mailbird.
Pro Attachment quick preview
Allows you to preview attachments selected in an email and hit the 'spacebar' to view them rather than having to download it and open a file.
Pro Import feature
This allows you to easily import all your emails from your previous email client to Mailbird.
Pro Email speed reader
Helps you scan through lengthy emails to get the important parts.
Pro Touchscreen support
Mailbird 2.0 has touchscreen support for tablets and other touch screen Windows devices which makes it easy to control no matter what kind of Windows device is being used.
Pro Universal filters
Pro Dark theme
Pro Built-in end-to-end encryption
Pro No personal information needed
To create an account you don't need to give any personal information, just choose username, domain, and password. Even the recovery email address is optional.
Pro Privacy respecting
User data is protected by strict privacy laws because all servers are located in Switzerland.
Pro Open Source
Pro Mobile apps
Apps for Android and iOS available.
Cons
Con Mailbird does not support moving emails between accounts
It's a disaster when you need to transfer all mails into a new account but you can't.
Con No updates
Program seems to be 'end of life' as since December 2021 (it's now almost July 2022) no updates were issued :-(
Con Search is slow
Searching within all your mail takes quite some time.
Con Not possible to rename the accounts
You always see a mail address as the account name, it's not possible to change that.
Con No mail sorting possible
It's not possible to sort the mail list, so you will always see the mail 'date sorted'.
Con Bloated
Huge size, high memory consumption, uses CEF (Chromium Embedded Framework).
Con No spam filter
Doesn't have spam filter.
Con Javascript-intensive Webmail
Free accounts are required to use Javascript webmail and encryption is done in the browser. Javascript cryptography is harmful for security and should not be used.
Con Encryption Keys are stored server-side
The keys are generated during account creation. Using your existing keys is prohibited and ProtonMail must store and control the private keys. Encryption cannot be secure unless the user controls the private keys.
Con Still lacks some useful features
At the moment, there is no calendar feature and contact management is quite poor. They will, however, start to work on it.
Con Ties to US Investors
ProtonMail takes money from US Investors
Con No IMAP and SMTP support for basic accounts
Basic accounts are restricted to the Protonmail web client. Support for IMAP and SMTP is available with a paid subscription only, and as such with basic accounts it is not possible to send and receive email with external applications.
Con Overly expensive for desktop support
Con Requires phone number for login
If you sign up over Tor or a VPN, it will require email or phone number verification. Email verification is disabled if you use an email that isn't from Google or Outlook.
Con Not fully Open Source
