Lua

Auto-Generate or Explicitly Specify the Message-ID Email Header

Demonstrates how to auto-generate or explicitly specify the Message-ID header field. Lua

local chilkat = require("chilkat")

local success = false

local email = chilkat.Email.new()

email.subject = "test"
email.body = "test"
email:add_to("Joe", "joe@example1.com")
email.from = "mary@example2.com"

local mailman = chilkat.MailMan.new()

-- When the mailman sends email, it renders the email to be sent,
-- and then sends the rendered MIME.

-- Instead of actually sending the email, this example will render
-- to MIME so we can see what would be sent..

-- We can explicitly set the Message-ID like this:
mailman.auto_gen_message_id = false
email:add_header_field("Message-ID", "<xyz123@abc>")

local mimeStr = mailman:render_to_mime(email)
print(mimeStr)

-- This is what we get:

-- MIME-Version: 1.0
-- Date: Mon, 20 Jul 2020 17:20:09 -0500
-- Message-ID: <xyz123@abc>
-- Content-Type: text/plain; charset=us-ascii; format=flowed
-- Content-Transfer-Encoding: 7bit
-- X-Priority: 3 (Normal)
-- Subject: test
-- To: Joe <joe@example1.com>
-- From: mary@example2.com
--
-- test

print("--------")

-- If we auto-generate...
mailman.auto_gen_message_id = true
mimeStr = mailman:render_to_mime(email)
print(mimeStr)

-- We get this:

-- MIME-Version: 1.0
-- Date: Mon, 20 Jul 2020 17:21:20 -0500
-- Message-ID: <04EDE096BBFE484967F6398A973B0FCF6EA09A44@CHILKATSLICE>
-- Content-Type: text/plain; charset=us-ascii; format=flowed
-- Content-Transfer-Encoding: 7bit
-- X-Priority: 3 (Normal)
-- Subject: test
-- To: Joe <joe@example1.com>
-- From: mary@example2.com
--
-- test