If multiple people are using the same Apple ID on different devices you may find:
- You are receiving iMessage texts intended for someone else
- Someone is receiving iMessages texts meant for you
- You are receiving your iMessages texts as e-mails
The iMessage accounts on those devices are linked. Any messages sent or received through the Apple Messages app will be available on all devices using the same Apple ID.
To solve this, you need to disable the unwanted email addresses and phone numbers linked to iMessage on all devices that are using the same Apple ID.
Disable unwanted emails and phone numbers
- Select Settings
- Scroll to and select Messages
- Select Send and receive
- Find the email address or phone number to which the unwanted messages are being sent. Uncheck that address or number
Create a separate Apple ID for each device and set up family sharing.