iOS 15.6 Check Your Settings (IMAP)

[Robotron2k84]

Just spent an hour on the phone with Apple engineering support about an issue that happened this morning around 3am where a newly upgraded iOS 15.6 device caused thread exhaustion on the IMAP server.

The consequence of this activity was that the iOS device proceeded to prune files and expunge them without user intervention.

Huge bug, disable IMAP and Notes access if you run your own server, or even if you don’t, if you are paranoid. Apple is investigating and may pull 15.6 if they confirm this happens on more devices.

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[Robotron2k84]

Ok. Got a resolution from them.

Apparently the user that encountered the deleted mail messages had blocked the user that the messages were from.

In the settings for mail on iOS, there is an option to enable the mail program to move the blocked message to the trash and expunge it.

iOS 15.6 seems to have enabled that by default on this user’s device.

So, 15.6 won’t likely get pulled, but check:

Settings -> Mail -> Blocked Sender Options

to verify if it still is set the way you want after the upgrade.

Sometimes Apple really sucks.

[Marauder2003]

My iPad is on 15.6. Just checked settings. Did not change. I also have no one in my blocked list. Guess I am an accepting person.

[Librarian]

Until Apple implements rules on IOS mail, I won't have mail on any IOS device.

I get hundreds of spam emails per day; on MacOs, Mail handles all that.

Don't need email on a phone anyway; email is designed to be 'read when convenient'. Away from a full-sized keyboard is never convenient. Using an app from someone else is not convenient.

[Robotron2k84]

[Robotron2k84]

Until Apple implements rules on IOS mail, I won't have mail on any IOS device.

I get hundreds of spam emails per day; on MacOs, Mail handles all that.

Don't need email on a phone anyway; email is designed to be 'read when convenient'. Away from a full-sized keyboard is never convenient. Using an app from someone else is not convenient.

I have the server do that work. The client doesn’t need to. You can also leave your desktop mail program running in the background to run the rules for mobile.

This blocking setting, however, is device specific as it ties into the device’s user’s Apple account (to populate the block list), and there is no way to counteract it or disable from the server side.