There is a brand-new bug in the iOS 16 system that causes the mail application to crash. This occurs when the inbound email consists of a special text string. The bug was discovered by Equinux, which found the iOS 16 vulnerability while evaluating spam. The business stated that numerous individuals on the team experienced a crash in the iOS Mail app. The crash is nearly instant as the user introduces the application.

They discovered and researched that their team members all received the exact same spam email. Initially look, the email is just a plain HTML e-mail. An appearance at the email headers exposes that the spammers are doing something in the “From” column.
Normally, the “From” field in a message looks like this:

The business stated that many people on the team experienced a crash in the iOS Mail app. Mailjack can affect the Mail app on any device running iOS 16 (stable). Some mail services, including Gmail, Outlook, and Hotmail, overwrite inbound mail to avoid something like this from occurring.
Currently, the solution to this problem is to erase the spam from the account on a device not running iOS 16 or through a various mail client.

From: sender@example.com.

The “From” field of this spam e-mail has a few additional characters that are causing the mail app to crash.
Apple does not have a repair
According to Equinux, this indicates “anyone can send out an e-mail to any iOS 16 user that can crash their Mail app”. They created a form field on the site that they could use to evaluate for this bug, and they called it “Mailjack”.

Mailjack can impact the Mail app on any gadget running iOS 16 (steady). It also affects iOS 16.0.1 on iPhone 14, and the most recent iPad OS 16 beta. Some mail services, including Gmail, Outlook, and Hotmail, overwrite inbound mail to avoid something like this from happening.
Gmail and Yahoo obstruct these malicious emails totally, however iCloud Mail, Apples own mail service, doesnt. The message may also be categorized in the “spam” inbox, and if so, the Mail app would crash every time the spam inbox was examined. This is a little better than if the message appears in the main inbox. Presently, the option to this problem is to erase the spam from the account on a device not running iOS 16 or through a different mail client.