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Add to SafariWhen comparing Opera Mail vs Canary Mail, the Slant community recommends Canary Mail for most people. In the question“What are the best e-mail clients for macOS?” Canary Mail is ranked 7th while Opera Mail is ranked 11th. The most important reason people chose Canary Mail is:
You can assign your default signature to an ALIAS for the same account or create an altogether new one.
Specs
Question Ranking
Pros
Pro Intuitive user interface
The design of the UI in Opera Mail is clean and intuitive, making for an easy to use client.
Pro Very efficient search
Be it the subject or the sender, it is very fast and accurate.
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 Multiple Signatures for Multiple Accounts including ALIASES
You can assign your default signature to an ALIAS for the same account or create an altogether new one.
Pro No personal data stored on servers
No access tokens, passwords, attachments or email itself is stored on Canary servers.
Pro Seamlessly integrates with iOS verion
Gone are the days of manual setup of phone email clients! Canary Mail syncs not just your accounts but all of your settings and even signatures on iCloud.
Pro Local email database is encrypted on disk
Canary stores your local email database encrypted.
Pro Gorgeous and intuitive
Pro Pretty Good Privacy or PGP built-in
Cons
Con Being discontinued
Opera Mail will be end of lifed per Opera website
Con Very limited feature set
Compared to Thunderbird.
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
Con Missing mainstream features
No functionality for user-defined Gmail message-tagging, or moving/copying to IMAP folders. Might be acceptable in a free app, but not in one with premium pricing.
Con Buggy
It adds random pins to old emails which then stay on top of the inbox list
Con Poor handling of new emails
You sometimes need to wait very long before your email actually gets delivered.
Con Windows moves randomly
When you create a new email, the new windows is often misplaced so that you have to move it to reach the "Send" button.
Con Poor text editing capabilities
The cursor is laggy so you're better off using keyboard shortcuts.
Con Show NO show
It'll show a new email on a counter, but you're not able to view them.
