Fix BlueMail push notifications on Xiaomi, Redmi and POCO

Xiaomi’s software is the most aggressive of the mainstream Android skins: without autostart permission it closes BlueMail shortly after the screen goes off, and no notification arrives until you open the app again. All three settings below matter.

Turn on autostart

Settings → Apps → Manage apps → BlueMail → Autostart (on some versions, App permissions → Background autostart).

Without this, nothing else on this page will help — the app is not running to receive anything.

Remove battery restrictions

Settings → Apps → Manage apps → BlueMail → Battery saver → No restrictions.

On some builds this lives under Settings → Battery → App battery saver, or Settings → Additional settings → Battery and performance → Manage apps’ battery usage.

Lock BlueMail in Recents

Open Recents, swipe down on the BlueMail card (or long-press it and tap the padlock).

Locked apps survive the memory clean-up that runs when you clear Recents or the system needs RAM.

If mail still arrives late

• Settings → Notifications → App notifications → BlueMail — allow notifications and check the mail channel.
• Turn off Battery saver in Settings → Battery; on MIUI it restricts background data as well as CPU.
• After a system update, check autostart again. Xiaomi updates have been known to reset it.