A cloud-based service included in Microsoft 365, delivering scalable messaging and collaboration features with simplified management and automatic updates.
By this time you have probably figured it out yourself, but I had a similar issue and solved it without using wildcards. While use the KQL editor, try something like (Date=2023-02-01...2023-02-28)(From=******@domain.com)(To:competitors.org). The colon after To means "contains", so it kind of works as a wildcard.