TickTick is a cross-platform to-do list app & task manager that helps you to get all things done and make life well organized.

option to encrypt like pgp

I just want to have the ability to add html content to my signatures

I believe, the IOS app should have a "no message preview" option on a lock screen, just like a default Apple Mail app. You see a notification on a lock screen, but you do not see a message preview.

I currently have to swipe twice for emails that I don't need to open and want to archive directly. Would be useful to either automatically mark as read all messages sent to archive or else have an action that does both that I can assign to a swipe.

When someone sends an image in the body of an email, I would really like to be able to save it to my device.

Separate mail using gmail's tabs. Rather than only having inbox for a gmail account, use updates, promotions, etc., if they are used in my gmail account

once you click on a mail in a conversation to open it up, you can't close it down again. This makes navigating long threads frustrating

I send out the same email to several clients and new clients. It would be nice to have a template to send them. Thank you.
Jim

More modern notification sounds.
Better email signature options.
Better spellcheck system/option.

When an email is sent to calendar, viewing it in Apple Calendar there is a URL link to open the email in AirMail. But opening it in Google Calendar, this link doesn't exist.

Marking all emails as read in Airmail in OS X does not remove the badge or notifications from the iOS app. Sync should be near instant.

Would be great to have a today widget showing the subjects in the "Todo" folder

I generally do not want all of my email stored locally. Perhaps Inbox and Starred folders (or selectable) could always be kept regardless of age. Otherwise, all emails older than an account specified range would be removed from local storage.

thought this will be available from day 1!

Currently it looks like the mail composer on iOS always creates an HTML email. I almost never want to send an HTML email, so I cannot use the app to send mail.

Please add a plain text composer like in the macOS version of AirMail.

Or is that already possible?

I get emails in multiple languages, it'd be really nice to have a 'send to Google translate' type of action.

Would be great to have a split screen in horizontal mode

When discuss become too long, find new attachments very hard or impossible