Broadcasting for signup event: sender's email address needs to be fixed

Now, "From" address of sender is showed as ""

Steps to reproduce:
1. Create an signup event
2. Signup a registrant
3. Go to the event -> Manage Registrations -> Email Registrants

4. Enter subject and message, and then click Send

5. Wait 1 to 2 minutes and check the mailbox of the registrant. An email is sent from OS to the registrant with "From" address as "". That is odd and should be the email address of the event owner.

1 person has
this problem