Steven Freedman mentioned that Gmail doesn't support sorting in the web interface, but for some reason I was unable to reply to the blog post, so I'm making a thread instead.
While it's ridiculous that Gmail doesn't directly support sorting, there's a workaround. You can use IMAP to access your mailbox with a regular mail client like Thunderbird which does support that functionality. (Changes you make to your mailbox via IMAP will be reflected when you return to the web interface.)
While it's ridiculous that Gmail doesn't directly support sorting, there's a workaround. You can use IMAP to access your mailbox with a regular mail client like Thunderbird which does support that functionality. (Changes you make to your mailbox via IMAP will be reflected when you return to the web interface.)
https://support.google.com/mail/troubleshooter/1668960