When comparing Opera Mail vs Mailbird 2.0, 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 Opera Mail is ranked 7th.
Ranked in these QuestionsQuestion Ranking
Pro Opera Mail CAN BE set as default email client in Windows 8 & 10
Pro Automagic smart filtering
After a bit of use Opera learns what e-mail belongs in what folder just by previous usage. This makes for a convenient way to have e-mails filtered without having to manually mange every e-mail.
Pro Free and based on Mozilla code
Opera Mail is completely free to download and use and it is based on Mozilla's code, which is what makes it a bit similar to Thunderbird in looks and function.
Pro Intuitive user interface
The design of the UI in Opera Mail is clean and intuitive, making for an easy to use client.
Pro Undo send
Pro Free and paid version
Users who only need to use the basic features of the app have a free version available, though it does limit to only 3 sync'd accounts. There is a paid version that does extend functionality and allows for unlimited account 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 Customizable UI
The app is very customizable, you can make it look just like you want.
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.
Con Sync is slow
Opera tends to be slower on e-mail sync when compared to other popular clients.
Con Collectss user data
Mailbird does collect some user data such as user email addresses, names and client use. So for those that are security minded the use collection of this information may not be wanted and can not be avoided.