(Chilkat2-Python) Mark IMAP Email as Read/Unread (Seen/Unseen)

Demonstrates how to mark emails as read or unread.

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import sys
import chilkat2

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

imap = chilkat2.Imap()

# Connect to an IMAP server.
# Use TLS
imap.Ssl = True
imap.Port = 993
success = imap.Connect("imap.someMailServer.com")
if (success != True):
    print(imap.LastErrorText)
    sys.exit()

# Login
success = imap.Login("myLogin","myPassword")
if (success != True):
    print(imap.LastErrorText)
    sys.exit()

# Select an IMAP mailbox
success = imap.SelectMailbox("Inbox")
if (success != True):
    print(imap.LastErrorText)
    sys.exit()

# Set PeekMode so that downloaded messages are not
# automatically marked as seen.
imap.PeekMode = True

# The NumMessages property contains the number of messages 
# in the currently selected mailbox.
numMsgs = imap.NumMessages
if (numMsgs == 0):
    sys.exit()

for i in range(1,(numMsgs)-1):
    # Download each email by sequence number (not UID)

    # email is a CkEmail
    email = imap.FetchSingle(i,False)
    if (imap.LastMethodSuccess == False):
        print(imap.LastErrorText)
        sys.exit()

    # If desired, mark the email as SEEN.  There are two
    # ways to do it:

    # 1) Set the flag directly by using the sequence number
    # Indicate that we are passing a sequence number and
    # not a UID:
    bIsUid = False
    # Set the SEEN flag = 1 to mark the email as SEEN,
    # or set it to 0 to mark it as not-seen.
    success = imap.SetFlag(i,bIsUid,"SEEN",1)
    if (success != True):
        print(imap.LastErrorText)
        sys.exit()

    # 2) Alternatively, we can use the email object.
    # When an email is downloaded from the IMAP server
    # Chilkat will add a "ckx-imap-uid" header to the email.
    # This makes it possible to know the UID associated with
    # the email.  (This is not the sequence number, which may change
    # from session to session, but the UID which does not change.
    # The SetMailFlag method is identical to SetFlag, except
    # it gets the UID from the ckx-imap-uid header.
    # For example:
    success = imap.SetMailFlag(email,"SEEN",1)
    if (success != True):
        print(imap.LastErrorText)
        sys.exit()

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