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Error Sending Email to the BP Email Address: Remote SMTP Server Has Rejected Address (Doc ID 2859846.1)

Last updated on SEPTEMBER 04, 2023

Applies to:

Primavera Unifier Cloud Service - Version 20.7 and later
Information in this document applies to any platform.


When attempting to send emails to the Business Process (BP) email address the following error occurs:


Your message cannot be delivered to the following recipients:

Recipient address: [EMAIL_ADDRESS]
Reason: Remote SMTP server has rejected address
Diagnostic code: smtp;550 5.1.1 unknown or illegal alias: [EMAIL_ADDRESS]


The issue can be reproduced at will with the following steps:

  1. Send an email from external (Outlook) to the address of the BP
  2. Notice the email response that the address cannot receive emails


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