Inherited from Serializable
Inherited by implicit conversion any2stringadd from
Reply-To to any2stringadd[Reply-To]
Inherited by implicit conversion StringFormat from
Reply-To to StringFormat[Reply-To]
Inherited by implicit conversion ArrowAssoc from
Reply-To to ArrowAssoc[Reply-To]
RFC 5322 3.6.2:
In either case, an optional reply-to field MAY also be included, which contains the field name "Reply-To" and a comma-separated list of one or more addresses.