Final answer:
Sensitive or confidential information should not be sent in emails due to potential privacy issues and the possibility of being shared beyond the intended audience. Business emails should be professional and avoid personal messages, as they are the property of the employer.
Step-by-step explanation:
The types of content that should generally not be sent in email are sensitive or confidential information. In professional settings, it is crucial to maintain privacy and confidentiality. Business emails are property of your employer and could be subject to review or disclosure, which is why personal messages should also be avoided on business email accounts. When using email, whether for personal communication or in a business context, remember that emails can be forwarded, intercepted, or otherwise become public. Therefore, private matters and sensitive information should be communicated through more secure channels, and personal messages should be kept separate from business communications.
Email should be used carefully with consideration for the potential audience and impact. Proper netiquette dictates being clear, concise, using proper grammar and spelling, and avoiding casual texting language. Additionally, before sending an email, consider whether the content is something you would be comfortable with others seeing, as emails can easily be shared beyond the intended recipient.