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 5th while Opera Mail is ranked 9th.
Ranked in these QuestionsQuestion Ranking
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 Opera Mail CAN BE set as default email client in Windows 8 & 10
Pro Intuitive user interface
The design of the UI in Opera Mail is clean and intuitive, making for an easy to use client.
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 Undo send
Pro Excellent UI/UX
The UI looks simple but is customizable. UX is also simple and easy to use.
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 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 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 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 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 Unlimited email accounts
There is no limit to the number of email accounts you can manage from Mailbird.
Pro Email speed reader
Helps you scan through lengthy emails to get the important parts.
Pro Import feature
This allows you to easily import all your emails from your previous email client to Mailbird.
Con Very limited feature set
Compared to Thunderbird.
Con Being discontinued
Opera Mail will be end of lifed per Opera website
Con Sync is slow
Opera tends to be slower on e-mail sync when compared to other popular clients.
Con Does not support 4K monitors
Huge size, high memory consumption, uses CEF (Chromium Embedded Framework).
Con No spam filter
Doesn't have spam filter.
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.