Below are a few steps that can help reduce the probability of your emails being sent to the spam folder:

1. Create a clear ‘From’ email address that corresponds with your domain and company
   
2. Always provide an opt-out link in emails
   
3. Include a descriptive subject line with minimal punctuation and special characters
   
4. Avoid using majority images and HTML-only emails
   
5. Organize and clean contact lists regularly