Mail App Delay

[FireEmerald]

I'm using the build in mail app of MIUI. If i read or move a mail using the app and then take a look at my mail account using the homepage or Outlook (about 30min later) nothing is updated - mails are still unread or unmoved.

Does the mail app only update the made changes in 1 hour intervals? If i change anything using Outlook everything is changed immediately.

Greetings