Sending mass emails without them looking like spam:
Get permission: Only send emails to people who have opted in to receive communication from you. This can be done by having them sign up for your newsletter, register for an event, or request more information about your product or service.
Personalize the emails: Use the recipient's name in the subject line and body of the email. This can help the email feel more personal and less like it's just a mass message.
Use an email marketing service: Services like MailChimp, Constant Contact, and AWeber are designed for sending mass emails and have built-in tools to help prevent your messages from being flagged as spam.
Include an unsubscribe link: All mass emails should include an unsubscribe link to make it easy for people to opt out of receiving future emails. This helps comply with regulations and also prevents to be flagged as spam.
Watch your frequency: Don't send too many emails too frequently. This can lead to recipient marking your email as spam. Set a schedule and stick to it so that people know when to expect an email from you.
Avoid using spam trigger words and phrases in the subject line and body of the email. Such as free, buy, sale, limited time, etc.
Test your emails: Before sending a mass email, test it to a small group of recipients or use a spam testing tool to check for any potential issues.
Keep the message value added and informative, rather than just promoting your product. People are more likely to mark an email as spam if it seems to only be about making a sale.
By following these best practices, you can increase the chances that your mass emails will be received and read, rather than marked as spam.