Using wildcards in disclaimer rules
The only supported wildcard character in chat, disclaimer and content rules is the asterisk * . It matches any number of characters (zero or more).
Wildcard matches are performed against user names and group names.
For example, if you use *East* , any user who happens to be in a group named SouthEast Sales would be considered a match. It is therefore recommended to use longer, unique words with a higher specificity to reduce the potential of unwanted matches.
So, if you only want to match people who have an organizational unit /East/US in their name, use */East/US rather than just *East* .
Examples
F*bar matches both Foobar and Fobar
*/Instant matches both Peyton McManus/Instant and Lisa McManus/Instant
P*/Instant matches Peyton McManus/Instant but not Lisa McManus/Instant