class Mail::InReplyToField

:nodoc:<br>mail.message_ids #=> [‘F6E2D0B4-CC35-4A91-BA4C-C7C712B10C13@test.me.dom’]<br><br>mail #=> ‘#<Mail::Field:0x180e5e8 @field=#<Mail::InReplyToField:0x180e1c4<br>mail #=> ’#<Mail::Field:0x180e5e8 @field=#<Mail::InReplyToField:0x180e1c4<br>mail #=> ‘#<Mail::Field:0x180e5e8 @field=#<Mail::InReplyToField:0x180e1c4
mail.in_reply_to #=> ’<F6E2D0B4-CC35-4A91-BA4C-C7C712B10C13@test.me.dom>‘
mail.in_reply_to = ’<F6E2D0B4-CC35-4A91-BA4C-C7C712B10C13@test.me.dom>‘
mail = Mail.new
== Examples:
Message IDs.
Only one InReplyTo field can appear in a header, though it can have multiple
enclosing angle brackets which per RFC are not syntactically part of the message id.
Note that, the #message_ids method will return an array of message IDs without the
module instance metods.
has a InReplyToField as its field type. This includes all Mail::CommonMessageId
Sending in_reply_to to a mail message will instantiate a Mail::Field object that
In-Reply-To: header field in the email.
The In-Reply-To field inherits from StructuredField and handles the
= In-Reply-To Field

def self.singular? 

def self.singular?
  true
end

def initialize(value = nil, charset = nil) 

def initialize(value = nil, charset = nil)
  if value.is_a?(Array)
    super value.join("\r\n\s"), charset
  else
    super
  end
end