Is there a list of the 3 digit (hard) bounce response codes that you reference in your "Understanding delivery at the server level" info?

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East Grand Rapids Schools Foundation

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Posted 1 year ago

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Photo of Jason Keary

Jason Keary, Official Rep

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Hi! Thanks for reaching out! I'll be glad to help.

There is not one particular list I can give you since those codes will be unique for each receiving server and ISP. If you scroll to the bottom of the article in the Emma Resource Center, you will see a few different ISP's listed. Clicking on those will take you to that particular ISP's site and give you some information on their own unique bounce codes.

I hope this helps and please let me know if there is anything else I can help you with!

- jason