Issue
When sending an email through Blackboard, I received a bounce back message of "Multiple destination domains per transaction is unsupported"
Environment
Information
GRCC uses two primary domains for email, GRCC 's staff email domain is grcc.edu, whereas GRCC's student email domain is email.grcc.edu
Resolution
When sending an email from Blackboard using the Send Email course tool, you will need to send a separate email to users who are GRCC Staff and another who are GRCC Students. If you have multiple recipients, Groups can be created to batch up recipients with similar domains.
Cause
Blackboard does not allow users to send to multiple domains at a time.