Create rules for incoming and outgoing mail
You can create rules not only for each domain but also for a specific sender/recipient. CDX Spam uses multiple engines to screen and detect malicious messages.
CDX AntiSpam
Inbound & Outbound filtering for SPAM & Threads
Virus detection engines
The CDX Spam service uses two different antivirus engines to detect viruses in messages (File Type Blocking) but also in the files, compressed or not, attached to them (Attachment Blocking).
Do the right thing today and rest asured all is taken care of
Using multiple tools also ensures that your domain reputation is maintained at an excellent level. As a result, your company's domain will not be blacklisted on the internet.