BlackBerry BIS - The Message Body Contains Garbled Text when Sending Out

The BlackBerry internet service has a configurable Your Name field.  This field is used to control the From field in the recipient's mail client.
If the Your Name field is configured to use multiple lines, it can cause issues with mail rendering, which may result in garbled text in the email body.  Multiple lines are usually created by clicking the Enter key instead of the Space key while typing in the Your Name field.
Do not use multiple lines when configuring the Your Name field.
To remove the line breaks, please complete the following steps:
1.  Open the Email Setup Application on the BlackBerry smartphone.
2.  Select the affected email account.
3.  Choose Edit.
4.  Expand General Options.
5.  Edit the Your Name field so that all characters are on one line.