Don't use this class directly! instead ask mail::field for new instances based on the field name!

mail::field::received provides subroutines for parsing received headers from e-mails. it mostly complies with rfc822, but deviates to accommodate a number of broken mtas which are in common use. it also attempts to extract useful information which mtas often embed within the (comments).

it is a subclass derived from the mail::field and mail::field::generic classes.