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[22.214.171.124]>: Client host rejected: Access denied
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.