Here are some things you can do to avoid getting your bulk emails blacklisted:
Choose the right provider – If you’re using a bulk email service to send out bulk emails, you’ve got the right idea! Using a bulk email service provider will help you a great deal in saving time and money when sending out your bulk emails. However, ensure you’re using a reputable source with a reliable IP address. Otherwise, email providers like Gmail will mark your emails as spam.
Let your recipients unsubscribe – Always include a noticeable option to unsubscribe from your emails. This will signal to the email provider that you’re not trying to spam people with emails who don’t want them. Remember: it’s better to lose some subscribers through the unsubscribe button than to lose all of them through a spam filter.
Always ask permission – Make sure your recipients opt-in to your emails before sending them out. Your customers’ consent will go a long way towards proving yourself to the spam filter.