To get whitelisted, you typically need to ask your subscribers to add your email address to their contact list or address book. Here's a step-by-step guide:
Send a Welcome Email: When someone subscribes to your mailing list, send a welcome email asking them to add your email address to their contact list. Provide Clear Instructions: Make it easy for your subscribers to whitelist you by providing clear, step-by-step instructions for different email clients. Engage with Your Audience: Consistently send valuable and engaging content to your subscribers. If they frequently open and interact with your emails, it sends positive signals to ISPs.