Lua

Repair MIME Formatting Problems in an Email

Demonstrates the Chilkat Email.ApplyFixups method, which repairs selected MIME-formatting problems commonly found in email produced by other software. The argument is a comma-separated list of fixup keywords. The currently defined keyword is FixRelated, which relocates HTML-related items (such as embedded images) into the appropriate MIME structure so they are not incorrectly presented as ordinary attachments. This example loads an email and applies that fixup.

Background: Not every mail program builds strictly correct MIME. A common defect is placing an inline image as a loose attachment instead of nesting it in a multipart/related enclosure, which makes it show up as a downloadable file rather than displaying in the HTML. ApplyFixups corrects such structural issues so the message renders as intended.

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Lua

local chilkat = require("chilkat")

-- Demonstrates the ApplyFixups method, which repairs selected MIME-formatting problems
-- commonly found in email produced by other software.  The argument is a comma-separated
-- list of fixup keywords.

local email = chilkat.Email.new()

local success = email:load_eml("qa_data/eml/message.eml")
if not success then
    print(email.last_error_text)
    return
end

-- Apply the "FixRelated" fixup, which relocates HTML-related items (such as embedded
-- images) into the proper MIME structure so they are not shown as ordinary attachments.
success = email:apply_fixups("FixRelated")
if not success then
    print(email.last_error_text)
    return
end

print("Applied MIME fixups.")

-- Note: The path "qa_data/..." is a relative local filesystem path,
-- relative to the current working directory of the running application.