Final answer:
When sending an HTML email, it is best practice to create a text version, proofread, and avoid copying all known leads from the same domain.
Step-by-step explanation:
When sending an HTML email, it is a best practice to:
- Create a text version to ensure compatibility with email clients that do not support HTML.
- Proofread the email before sending to ensure clear and error-free communication.
- Avoid copying all known leads from the same domain as it may be perceived as spam.