Hello @nogihchocolates  Implementing a branded sender domain and sender authentication does not guarantee Inbox/Promotions tab delivery.

There are a lot of other factors to consider. Here is some Chatgpt info for you.

• Spammy Content:

  • Excessive use of certain keywords like "free," "winner," "guarantee," etc.
  • Overuse of exclamation marks, all caps, or other attention-grabbing techniques.
  • Content that appears to be phishing or too good to be true.

• Poor Sender Reputation:

  • Sending emails from an IP address or domain with a poor reputation.
  • Previous spam complaints or blacklisting.

• Technical Issues:

  • Large attachments or attachments with executable files (.exe).
  • Broken links or images.
  • HTML errors in the email content.

• Frequency and Volume:

  • Sending emails too frequently.
  • Sudden spikes in the volume of emails sent.

• User Interaction:

  • Low open rates and click-through rates.
  • High bounce rates.
  • High unsubscribe rates or spam complaints.

• List Quality:

  • Sending emails to outdated or purchased email lists.
  • Not having explicit permission from recipients (not following GDPR, CAN-SPAM, etc.).

• Inconsistent Sender Information:

  • Changing sender names or email addresses frequently.
  • Inconsistent or misleading subject lines.

• Unsubscribing Issues:

  • Not providing an easy way to unsubscribe.
  • Ignoring unsubscribe requests.

• Content-to-Code Ratio:

  • A low text-to-image ratio.
  • Too much HTML code compared to the actual content.