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Permanent (5xx)

SES: General (Permanent)

AWS SES generic permanent bounce

AWS SES's catch-all bounce subtype for a permanent failure that doesn't fit a more specific category - usually maps back to a 550-class SMTP response from the receiving server.

Common causes

  • Receiving server rejected the message with a permanent SMTP error SES couldn't classify more specifically.

What to do

  • Check the bounce event's diagnosticCode field for the underlying raw SMTP response, and suppress the address - SES already flags it as permanent.

Get the full Deliverability Debugging Checklist

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