Question

How to lower suppression rate?

  • 8 March 2024
  • 1 reply
  • 58 views

Hi guys,

I’m working on my deliverability, and now I’m focused on understanding suppression.

Question:
1. How suppression works?
2. Is suppression related to delivered email, opened, or bounced?
3. What are your suggestions to lower the suppression rate?

Thank you in advance.


1 reply

Userlevel 2

Hi Denver,

 

Our docs have a good overview on how suppression works: https://customer.io/docs/journeys/esp-suppression/

Your ESP adds an email address to its suppression list when:

  • A message experiences a hard bounce.

    This means that either the recipient email address does not exist or the recipient email server blocked delivery.

  • A person lodges a spam complaint against a message.

 

The best way to reduce your suppression rate is to follow our deliverability best practices(https://customer.io/docs/journeys/email-deliverability-best-practices/#list-health) by maintaining list health.

I hope that these resources are helpful!

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