Ruby

Count the Report Parts in a multipart/report Email

Demonstrates the read-only Chilkat Email.NumReports property, which is the number of report parts in a multipart/report email. A part is counted as a report when its Content-Type is message/* (except message/rfc822) or text/rfc822-headers. Use GetReport to retrieve the body of each report part; indexes are zero-based. This example loads a report email and prints each report part.

Background: When a message can't be delivered, the mail system usually sends back a bounce known as a Delivery Status Notification (DSN). DSNs use the multipart/report structure, which bundles several parts: a human-readable explanation, a machine-readable message/delivery-status part describing exactly what happened (recipient, status code, failing server), and often the original message's headers. Reading these report parts lets a program automatically detect and process bounces.

Chilkat Ruby Downloads

Download Chilkat for Ruby

Ruby

require 'chilkat'

success = false

#  Demonstrates the read-only Email.NumReports property, which is the number of report
#  parts in a multipart/report email (for example, a Delivery Status Notification).
#  Use GetReport to retrieve the body of each report part.  Indexes are zero-based.

email = Chilkat::CkEmail.new()

#  Load a multipart/report email (such as a bounce / DSN message).
success = email.LoadEml("qa_data/eml/dsn_bounce.eml")
if (success == false)
    print email.lastErrorText() + "\n";
    exit
end

n = email.get_NumReports()
print "NumReports = " + n.to_s() + "\n";

for i in 0 .. n - 1
    print "---- Report " + i.to_s() + " ----" + "\n";
    print email.getReport(i) + "\n";
end