Lua
Lua
Count the Attached Messages in an Email
See more Email Object Examples
Demonstrates the read-only Chilkat Email.NumAttachedMessages property, which is the number of embedded emails represented by message/rfc822 MIME parts. These are counted separately from ordinary attachments and related items, and their indexes are zero-based. This example builds an inner email, attaches it to an outer email as a nested message, and prints the count.
Background: When you "forward as attachment," many mail clients embed the original message as a complete nested email rather than quoting its text. In MIME this appears as a
message/rfc822 part — an entire email (its own headers and body) tucked inside the carrier message. Chilkat distinguishes three kinds of enclosed content: ordinary attachments (NumAttachments), inline related items (NumRelatedItems), and these nested messages (NumAttachedMessages). Use GetAttachedEmail to pull an embedded message into its own Email object.Chilkat Lua Downloads
local chilkat = require("chilkat")
-- Demonstrates the read-only Email.NumAttachedMessages property, which is the
-- number of embedded emails (message/rfc822 MIME parts) contained in the email.
-- Create an inner email that we'll attach as a complete nested message.
local innerEmail = chilkat.Email.new()
innerEmail.subject = "I am an attached message"
innerEmail.body = "This entire email is nested inside another email."
innerEmail.from = "alice@example.com"
innerEmail:add_to("Bob", "bob@example.com")
-- Create the outer email and attach the inner email directly as a
-- message/rfc822 part. AttachEmail attaches a copy of the inner email.
local email = chilkat.Email.new()
email.subject = "Outer email with an attached message"
email.body = "See the attached email."
local success = email:attach_email(innerEmail)
print("NumAttachedMessages = " .. email.num_attached_messages)