Barracuda Firewall Concerns with AlertSite

This was provided by a client. Posting here for general information for the community:

 

Barracuda Firewalls may detect and flag AlertSite Messages as SPAM. The suggestion is as follows from the client:

 

"Make sure to include the "." ahead of thisHost so that
* a MitM attack on paypal.com doesn't hyperlink to "notpaypal.com""

For some reason Barracuda started flagging this as a possible malicious email. I have worked around it by whitelisting the insight appliance in the barracuda. I just thought I would let you guys know.