Can the REDDOXX Appliance be used with Hosted Exchange?

In general, the REDDOXX Appliance can be used with any mailserver.
Depending on the desired features, there are some requirements:
 
Spamfinder Modul:
In order to use the Spamfinder Feature, incoming mails Need to go through the REDDOXX Appliance first, before they are transported to the Hosted Exchange.
This means, that the REDDOXX Appliance is reachable via MX Record for incoming mail.
 
MailSealer Modul:
For encrypting and decrypting mails via S/MIME the incoming and outgoing mail traffic has to be delivered through the REDDOXX Appliance.
 
MailDepot Modul:
For Archiving mails, the Journal Feature on the Hosted Exchange is required.
Consider, that the Journaling rules need to be configured the way that all mails (not only internal) are processed to the Journal mailbox, in case the appliance is not integrated in the mailflow.