MIME Multipart Boundary and Preamble Properties

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Demonstrates the Boundary property, which gets or sets the raw boundary token of a multipart entity (without surrounding quotation marks), and UseMmDescription, which controls whether the conventional preamble text is emitted when serializing a multipart entity.

import sys
import chilkat2

success = False

mime = chilkat2.Mime()

# Create a multipart/mixed entity.
success = mime.NewMultipartMixed()
if (success == False):
    print(mime.LastErrorText)
    sys.exit()

# Boundary is the raw boundary token, without surrounding quotation marks.  Chilkat quotes it
# automatically in the serialized header when required.
mime.Boundary = "example-boundary"

# UseMmDescription controls whether the conventional preamble text
# "This is a multi-part message in MIME format." is emitted.  The default is False.
mime.UseMmDescription = True

# Add a simple part so the multipart has content.
part = chilkat2.Mime()
success = part.SetBodyFromPlainText("First part.")
if (success == False):
    print(part.LastErrorText)
    sys.exit()

success = mime.AppendPart(part)
if (success == False):
    print(mime.LastErrorText)
    sys.exit()

print("Boundary = " + mime.Boundary)

mimeStr = mime.GetMime()
if (mime.LastMethodSuccess == False):
    print(mime.LastErrorText)
    sys.exit()

print(mimeStr)