Recipient Address Has Been Cut And Getting javax.mail.SendFailedException: Invalid Addresses; nested exception (Doc ID 2317312.1)

Last updated on AUGUST 08, 2021

Applies to:

Symptoms

When attempting to reply to email, the following error occurs.

ERROR
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" javax.mail.SendFailedException: Invalid Addresses; nested exception is: com.sun.mail.smtp.SMTPAddres. SMTPAddressFailedException: 550.5.1 ..User unkown"


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

1. Set the Profile option "IEM: Admin: Reply To All" to ‘Yes’ at site level.

2. Sender (firstname.lastname@xxxxxx.com) sends email to <username@xxxxxxx.com> (This email account is not an active email account in Email Center)
  According to a rule in MS-Outlook, all emails, which will be sent to <username@xxxxxx.com> will be forwarded to security@xxxxxx.com (which is an active email account within Email Center).

3. Navigate to (R) Email Center Agent Console -> Email Center Agent Console -> Messages -> My Inbox

4. Open the email

5. Within the reply, “To” is filled with "<username@xxxxxx.com>; <NAME>."
  So the recipients address <username@xxxxxx.com> has been cut. Recipient is not a valid email address:

6. When now clicking on reply without having repaired the erroneous To-string, error page will be raised.

Cause

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