Anonymising data does not anonymise or remove username and password of mail servers

The JIRA data anonymiser does not remove or anonymise the username and password of any mail servers in the JIRA instance.
I suspect that the data anonymiser built into the Support Request feature of JIRA also does not remove or anonymise this information.

Please see this customer comment:
http://confluence.atlassian.com/display/JIRA/Anonymising+data?focusedCommentId=179440162&#comment-179440162