@ASM_COPE:
Are we able to use a wildcard for sub-domain names in the Domain/AS mode of the IPv4 lists?
For example, messagelabs.com use a set of server clusters for their MX's (e.g. cluster5.eu.messagelabs.com).
Keeping continual track of all these would be awkward.
Does the list option allow *****.eu.messagelabs.com as a way to auto-resolve all the sub-domains?
(Similarly desirable for *.protection.outlook.com)
Answering my own question: No, it doesn't seem to support sub-domain wildcards.
I created a test list with just one known domain (the messagelabs one, first testing *.messagelabs.com), but the add-in log file reported "Aliastable file not found". Also tested as *.eu.messagelabs.com, but the same logged result.