Unfortunately no support for custom domains.
Yingwu
Yep, seems to be like that.
I don't really know how they do it, but some do run newer Android versions like Android 14 (Meebook M8, Bigme B7). Anyway, the lack of Play store isn't really a consideration in China, it's only for foreign markets they have to include the Play store. This also means that China has many more Android e-ink brands than are available to us (which mostly are Boox, Meebook, Bigme or Hisense).
Still, e-ink is so much better than a regular screen. If one is really strapped for cash sure, but for one's eyes sake I'd say e-ink is a worthwhile investment if one likes to read. A phone can't compare.
To be honest I don't really find them prohibitively expensive if you count the value you'll get from them over the years. I have both a Kobo Libra 2 and an Android Boox Page, which I bought for different use cases. I see them both lasting me many years. My previous Kobo Aura One lasted me 7 years in itself before I sold it 2nd hand. My reading skyrocketed once I bought an e-reader.
Fair. I think it sounds reasonable!
I'd like to try something cheaper than KolabNow but still good, and at the same time combine my both email providers. So I'd like to have the ones with my custom domain on it be my front-facing public e-mail, and the others be for random sites and stuff.
Hmm ok. The "issue" is that I want my general @mailbox.org addresses to be pseudo-anonymous. I don't really have an issue with Mailbox.org knowing my first or last name, as they'll have my credit card information, anyway, but I'd like to avoid any external ways of being able to connect my custom domain email with the mailbox.org email addresses. Maybe my worries are irrelevant?
Unfortunately no support for using their own domain as an alias. I want to use both my custom domain and their own.