Thx for your feedback. Will check their website. What about real IMAP Push for iOS devices? Does it work, or only every X minutes push like others? (mailbox.org, Fastmail, iCloud Mail do have real IMAP push for iOS/macOS).
> While Gmail is an IMAP client app, it will not check for new mails continuously. Not only it does not support IMAP Push extensions which are standard nowadays, but the [most] frequent polling interval is 15 minutes
Which I guess implies they offer IMAP push, since they're expressing disapproval that the Gmail app doesn't support IMAP push
