Chilkat2-Python

Count the Messages in a multipart/digest Email

See more Email Object Examples

Demonstrates the read-only Chilkat Email.NumDigests property, which is the number of message/rfc822 parts contained within a multipart/digest enclosure. If no such enclosure exists, the value is 0. Digest indexes are zero-based; use GetDigestEmail to retrieve an individual bundled message as its own Email object. This example loads a digest email and lists each message's subject.

Background: A multipart/digest is a way to package many separate emails inside one carrier message — historically used by mailing lists to send a single daily "digest" containing all of that day's posts. Each bundled item is a complete message/rfc822 email with its own headers and body. This differs from NumAttachedMessages, which counts nested messages attached to an ordinary email rather than the members of a digest enclosure.

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import sys
import chilkat2

success = False

# Demonstrates the read-only Email.NumDigests property, which is the number of
# message/rfc822 parts contained within a multipart/digest enclosure.  If there is no
# multipart/digest enclosure, the value is 0.  Digest indexes are zero-based.

email = chilkat2.Email()

# Load a multipart/digest email (a single email that bundles many messages).
success = email.LoadEml("qa_data/eml/digest.eml")
if (success == False):
    print(email.LastErrorText)
    sys.exit()

n = email.NumDigests
print("NumDigests = " + str(n))

# Retrieve each bundled message as its own Email object.
digestEmail = chilkat2.Email()

for i in range(0,n):
    success = email.GetDigestEmail(i,digestEmail)
    print("Digest " + str(i) + " subject: " + digestEmail.Subject)

# Note: Paths such as "qa_data/..." are relative local filesystem paths,
# relative to the current working directory of the running application.