(CkPython) Read IMAP Email Headers

Call FetchHeaders to download only the email headers.

Note: This example requires Chilkat v11.0.0 or greater.

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import sys
import chilkat

success = False

# This example requires the Chilkat API to have been previously unlocked.
# See Global Unlock Sample for sample code.

imap = chilkat.CkImap()

# Connect to an IMAP server.
# Use TLS
imap.put_Ssl(True)
imap.put_Port(993)
success = imap.Connect("imap.example.com")
if (success == False):
    print(imap.lastErrorText())
    sys.exit()

# Login
success = imap.Login("****","****")
if (success == False):
    print(imap.lastErrorText())
    sys.exit()

# Select an IMAP mailbox
success = imap.SelectMailbox("Inbox")
if (success == False):
    print(imap.lastErrorText())
    sys.exit()

# Get the message IDs of all the emails in the mailbox
# We can choose to fetch UIDs or sequence numbers.
fetchUids = True
messageSet = chilkat.CkMessageSet()
success = imap.QueryMbx("ALL",fetchUids,messageSet)
if (success == False):
    print(imap.lastErrorText())
    sys.exit()

# When downloading headers, each email object contains
# (obviously) the headers, but the body will be missing.
# Also, attachments will not be included.  However, it is
# possible to get information about the attachments
# as well as the complete size of the email.
bundle = chilkat.CkEmailBundle()
headersOnly = True
success = imap.FetchMsgSet(headersOnly,messageSet,bundle)
if (success == False):
    print(imap.lastErrorText())
    sys.exit()

# Loop over the email objects and display information
# about each:
email = chilkat.CkEmail()

i = 0
j = 0
while i < bundle.get_MessageCount() :
    bundle.EmailAt(i,email)

    # Display the From and Subject
    print(email.ck_from())
    print(email.subject())

    # Display the recipients:
    j = 0
    while j < email.get_NumTo() :
        print("TO: " + email.getToName(j) + ", " + email.getToAddr(j))
        j = j + 1

    j = 0
    while j < email.get_NumCC() :
        print("CC: " + email.getCcName(j) + ", " + email.getCcAddr(j))
        j = j + 1

    # Show the total size of the email, including body and attachments:
    print(str(email.get_Size()))

    # When a full email is downloaded, we would use the
    # email.NumAttachments property in conjunction with the
    # email.GetMailAttach* methods.
    # However, when an email object contains only the header,
    # we need to access the attachment info differently:
    numAttach = imap.GetMailNumAttach(email)
    j = 0
    while j < numAttach :
        print(imap.getMailAttachFilename(email,j))
        attachSize = imap.GetMailAttachSize(email,j)
        print("    size = " + str(attachSize) + " bytes")
        j = j + 1

    print("--")

# Disconnect from the IMAP server.
success = imap.Disconnect()