Permanent (5xx)
SES: Suppressed (Permanent)
Recipient on account-level suppression list
SES itself refused to even attempt delivery because this address already bounced or complained before and is on your account's suppression list.
Common causes
- A previous hard bounce or complaint for this exact address.
What to do
- →This is SES protecting your sending reputation - don't manually remove addresses from suppression without a real reason to believe they're deliverable again.