I should not be priming you more, but just ask: What features and qualities are you missing? What would make you try another client? What are absolute must-haves in terms of features?
I would like to only be notified of new email that enters specific folders - rather than just an on/off where I am spammed with dozens if not hundreds of desktop notifications I do not care for. This way I don't need to keep my email always-visible to see when I get important email.
I would like extremely flexible organizational rules, again similar to Outlook.
All in a UI that gets out of my way and works well in portrait mode, as the few emails I get tend to be more longform and I like to reduce scrolling. I actually like Mailbird's [0] UI because I prefer icons over text labels for a tool I'm using frequently. Terrible UX (what do all these icons mean?) is something I'm willing to overcome as a power user. Using email/webmail clients reminds me of using IE6 with several toolbars installed to the point where I see more of IE's UI than I do the webpage I'm trying to browse. When I read emails I feel like I see more email client than I do email and that's aggravating.
I sort of understand the design decision in Outlook to make the search folders a separate (and flat?) tree. What behavior would you expect from operations like copy, search if you put a search folder inside another (physical) folder? Anyway, I'm sure there are sensible ways to do what you're asking for, but it opens up questions about what a "folder" is and should be. Very interesting.
Notification settings agreed! I always turned all of the notifications off when I had Outlook.
Portrait mode, OK. Many email clients do give some few options for various horizontal/vertical splits. Are the options in Outlook enough in that respect?
I want all Children Folder contents to be visible from a Parent Folder. Actions would still be done to the Child folder the email actually exists inside of - the Parent folder is for presentation purposes only. This is basically how a Search Folder works currently.
Currently if I open up a normal `Parent` folder I will see 0 emails. If I want to see any mail I need to visit a `Parent/Child` folder that the mail is filtered into. But what I really want, sometimes, is to see all of my `Parent/Child` emails in a single, flat view. Folders are great for organizing the past but are really bad for the "now".
To build off my earlier example (re: one distro = five problems) I want to keep these five problems filtered into their own folders for easier organization/finding when other people reference them. However, since I need to solve these problems as they are emailed in I want to watch a `Parent` folder. I can't do this because the `Parent` folder says it has no emails. I can only see email if I look at a `Parent/Child` folder, but now I can't see any email going to the other four `Parent/Child` folders. While watching the `Parent` folder I can see that `Parent/Child` has new unread emails - but now I'm forced to change my folder location panel to the Child folder in order to view and read this unread email. This is different from how a Search Folder works. In a Search Folder, I can continue to see all searched emails while browsing one in the reading panel.
I can see all of them at once by creating a 'Search' folder that searches each `Parent/Child` and displays the result of its search but why can't that Search Folder just be `Parent`? Why does it need to be `/Search Folders/Distro Trasks/`? If `/Parent/` was a search folder that could exist anywhere in the folder tree and works exactly like search folders currently work that'd be perfect.
The TL;DR of the entire problem is that `Parent` should just act like a Search Folder of it's Children instead of being completely useless. I don't want a flat structure - due to organizational/archiving purposes - but I do want a flat structure some of the time for handling email in the present time.
>Portrait mode, OK. Many email clients do give some few options for various horizontal/vertical splits. Are the options in Outlook enough in that respect?
Yes. Existing options that many clients use where the navigation panel and the reading panel are horizontally split instead of vertically split suffice.
If you really, really want speed, simplicity (beyond initial learning curve at least) and access, getting access to a host that allows shell access, has mutt and screen or tmux installed, and accepts mail delivery would hit all your points as long as a SSH session is doable. Screen/tmux keep the client open when you are disconnected to speed (no need to scan a few hundred MB or couple GB of messages in mbox or Maildir format), and mutt will be as fast and configurable as you can imagine (plus you generally get procmail).
If you're actually interested in that and don't want to run your own mail server, sonic.com (used to be sonic.net) has free shell accounts for customers, and they have non internet services you can sign up for still I think (such as hosting). In any case, you can just call or email support and tell them you are looking for a shell account to read your email and they might hook you up with a shell account for a couple bucks a month.
Unfortunately, it's increasingly buggy in increasingly problematic ways, and Apple appears to have zero interest in fixing it.
So I'd love to see a client that works like that for multiple accounts (with support for both POP and IMAP) and has all of Apple Mail's features but isn't broken.
The other things I want, but that wouldn't be enough on its own to get me to switch, would be:
1) a way to apply multiple tags to a single message, and filter by tag
2) add private notes to a message or thread
As an aside note, it supports Gmail and other proprietary cloud mailboxes - if just due to its being Electron based - so theres no more messing about with IMAP et al for Gmail
