Status 5.7.1#
smtp;554 5.7.1 <email@example>: Relay access denied
The server will not relay mail for this destination. Send through the correct outbound server for the domain, and confirm the recipient really hosts mail with this provider.
Spam filter · 5.x.x permanent failure
Proofpoint SMTP 554 Errors: Every Bounce Response Explained
Every SMTP 554 response on record from Proofpoint, with the verbatim text, the enhanced status code, a severity rating and a plain-English fix.
The transaction failed with no more specific reason offered. In practice the receiver is saying the message is unwanted: a spam verdict, a blocklisted IP, or a policy rejection. The accompanying text is where the detail is.
- Spam filter
- Proofpoint
- Code
- 554 (5xx)
- Responses
- 1
- Highest severity
- Unclassified
Proofpoint SMTP 554 responses
Postmaster & documentation
- https://help.proofpoint.com/Proofpoint_Essentials/Email_Security/User_Topics/040_spamsettings/041_adjustingyourspamsettings
- https://help.proofpoint.com/Proofpoint_Essentials/Email_Security/Administrator_Topics/110_logs/Common_Error_Codes_found_in_Message_Details
- https://help.proofpoint.com/Proofpoint_Essentials/Email_Security/Administrator_Topics/Other_Features/Proofpoint_Dynamic_Reputation_(PDR)_IP_blocklisting_and_IP_address_removal
Proofpoint SMTP 554 questions
›What does an SMTP 554 error from Proofpoint mean?
The transaction failed with no more specific reason offered. In practice the receiver is saying the message is unwanted: a spam verdict, a blocklisted IP, or a policy rejection. The accompanying text is where the detail is. At Proofpoint, it is a permanent rejection, and the specific reason is in the enhanced status code and message text of each response below.
›How do I stop Proofpoint from returning SMTP 554?
Match your bounce text to one of the responses below and follow its guidance. Recipient-side wording means fix the address. Authentication or reputation wording (SPF, DKIM, DMARC, blocklist) means fix your sending setup, and check Proofpoint's postmaster documentation.