'@param rmailbx: See L{Record_MINFO.rmailbx}.
@type rmailbx: L{bytes} or L{unicode}
@param emailbx: See L{Record_MINFO.rmailbx}.
@type emailbx: L{bytes} or L{unicode}'

def __init__(self, rmailbx='', emailbx='', ttl=None):

    (self.rmailbx, self.emailbx) = (Name(rmailbx), Name(emailbx))
    self.ttl = str2time(ttl)
