Gday.
Recently when we send an email from the iPhone 6s the content is not delivered and this error appears. Example has cc to myself.
We never had this problem before until the last iOS 15 update. I can’t find any settings to select html or other. We do not know why or how to fix this. Hope somebody can assist.
iPhone 6s Plus
Greetings Oneeyedmagpie,
Since this is not happening in the native Mail app, you'll want to contact the app developer directly for assistance.
How to contact an app developer - Apple Support
If this issue is also happening in the native Mail app, you can contact your email service provider for help with any account settings that may control how that content is sent.
Take care.
Email format
