Emails are not received when SMTP alerts are configured on the Symantec Protection Engine (SPE). Additionally you may notice the following entries in your SMTP server logs:
554 Transaction failed: Illegal semicolon, not in group (in reply to end of DATA command)
The SPE was using a ';' as a separator for email addresses instead of a ','.
The Broadcom engineering team has committed to resolving this issue in a future build.
A patch is available upon request if immediate resolution is required. If the patch is required, please open a case with Broadcom support and reference this KB article.