E-mail Notification Not Delivered to an Admin if the Text Field Contains another Admin with Special Character

(Doc ID 2254771.1)

Last updated on APRIL 17, 2017

Applies to:

Enterprise Manager Base Platform - Version 12.1.0.5.0 and later
Information in this document applies to any platform.

Symptoms

Configured an Incident Rule to Send a Notification to  2 Admins : IT-ADMIN1, ADMIN2.
But the EMail notification is Delivered only to IT-ADMIN1 but not to ADMIN2.

Following Combination Works:

Specify only 1 user ADMIN2: works
Specify only 1 e-mail of ADMIN2 (example@oracle.com): works
Specify 2 users (IT-ADMIN1,ADMIN2): does not work. Only IT-ADMIN1user gets notifications.
Specify 1 username and 1 email (IT-ADMIN1,example@oracle.com): works

Cause

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