-We confirm the existence of a MX record for the domain part of the
-address. This is not required; in fact many domains accept mail via
-an 'A' record for e.g. example.com which is used in lieu of an MX
-record. This behavior can be controlled via the \fR\-a\fR flag.
+Confirmation of the existence of an \fIMX\fR record for the domain
+part of the address. This is not required; in fact many domains accept
+mail via an \fIA\fR record for e.g. example.com which is used in lieu
+of an \fIMX\fR record. This behavior can be controlled via the
+\fR\-\-accept\-a\fR flag.