A &'realm'& is a text string, typically a domain name, presented by a server
to a client to help it select an account and credentials to use. In some
-mechanisms, the client and server provably agree on the realm, but clients
+mechanisms, the client and server probably agree on the realm, but clients
typically can not treat the realm as secure data to be blindly trusted.
.section "DKIM (DomainKeys Identified Mail)" SECDKIM
.cindex "DKIM"
-DKIM is a mechanism by which messages sent by some entity can be provably
+DKIM is a mechanism by which messages sent by some entity can be probably
linked to a domain which that entity controls. It permits reputation to
be tracked on a per-domain basis, rather than merely upon source IP address.
DKIM is documented in RFC 6376.