Here a few ways to protect your email account from being marked as spam or phishing:

1. Send emails to known and engaged contacts only.
2. Include a note in the body of emails that requests the recipients move the message out of their spam folder if it ends up there.
3. Double-check all elements of the message for accuracy before sending it.
4. Use authentic images that come directly from the source.
5. Utilize authentication protocols such as DomainKeys Identified Mail or Sender Policy Framework.