What does an exclamation mark inside a yellow triangle mean when you are trying to email photos?

An exclamation mark inside a yellow triangle typically indicates a warning or error related to the email attachment, such as a file size that exceeds the email provider's limit or a problem with the file format. It may also suggest that the email client is unable to upload or send the photo properly. To resolve the issue, check the file size, format, and any other prompts provided by your email client.