SendFailedException is generated when createing users in TDM Portal

Products

• CA Test Data Manager (Data Finder / Grid Tools)

Issue/Introduction

When creating users within TDM Portal the following exception is received:
Failed messages: javax.mail.SendFailedException:
Invalid Addresses; nested exception is: com.sun.mail.smtp.SMTPAddressFailedException:
554 5.7.1 <unknown[1.2.3.4]>: Client host rejected: Access denied

Environment

TDM Portal with an SMTP mail server configured.

Cause

The SMTP error codes "554 5.7.1" generally note that the message was rejected by the SMTP server.

Resolution

Check the SMTP server configuration and ensure that it will allow messages to be sent by the TDM Portal server.
The TDM Portal server may need to be whitelisted within the Access Control List.

Additional Information

See RFC6409 for SMTP Error code definitions.