How to send bulk email using smtp avoiding spam?

@rollin 

Sending bulk emails using SMTP without triggering spam filters requires following best practices and abiding by the regulations of email service providers. Here are some tips to help you send bulk emails without being marked as spam:

1. Use a reputable email service provider: Choose an email marketing service that is compliant with anti-spam regulations and provides tools for managing and monitoring email campaigns.
2. Obtain permission: Make sure that you have the recipients' consent to send them emails. This can be done through opt-in forms on your website or by asking customers to subscribe to your mailing list.
3. Use email authentication: Implement SPF (Sender Policy Framework), DKIM (DomainKeys Identified Mail), and DMARC (Domain-based Message Authentication, Reporting, and Conformance) to authenticate your emails and prevent spoofing.
4. Segment your email list: Divide your email list based on factors such as demographics, interests, and past interactions with your emails. This way, you can send targeted and relevant content to different segments.
5. Personalize your emails: Address recipients by their first names and tailor the content to their preferences and behaviors. Personalized emails are more likely to engage recipients and avoid being marked as spam.
6. Monitor deliverability and engagement: Keep track of key metrics such as open rates, click-through rates, and unsubscribe rates. This will help you identify any issues with your emails and address them promptly.
7. Provide an unsubscribe option: Include a visible and easy-to-use unsubscribe link in every email. This allows recipients to opt out of your emails if they no longer wish to receive them.
8. Maintain a clean email list: Regularly clean your email list by removing inactive email addresses, duplicates, and addresses with a history of bouncing. This will improve your email deliverability and sender reputation.

By following these tips and best practices, you can send bulk emails using SMTP without triggering spam filters and ensure that your emails reach recipients' inboxes successfully.