CkPython

POP3 GMail XOAUTH2 Authentication

See more GMail SMTP/IMAP/POP Examples

Demonstrates using OAuth2 authentication with pop.gmail.com.

Note: This example requires Chilkat v9.5.0.83 or greater.

CkPython

import sys
import chilkat

success = False

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

mailman = chilkat.CkMailMan()

mailman.put_MailHost("pop.gmail.com")
mailman.put_MailPort(995)
mailman.put_PopSsl(True)

mailman.put_PopUsername("my_account@gmail.com")

# If using OAuth2 authentication, leave the password empty.
mailman.put_PopPassword("")

# Load our previously obtained OAuth2 access token.
# See Getting a GMail POP3 OAuth2 Access Token
jsonToken = chilkat.CkJsonObject()
success = jsonToken.LoadFile("qa_data/tokens/gmail_pop3.json")
if (success == False):
    print(jsonToken.lastErrorText())
    sys.exit()

mailman.put_OAuth2AccessToken(jsonToken.stringOf("access_token"))

# Make the TLS connection to the POP3 server.
success = mailman.Pop3Connect()
if (success != True):
    print(mailman.lastErrorText())
    sys.exit()

# Authenticate..
success = mailman.Pop3Authenticate()
if (success != True):
    print(mailman.lastErrorText())
    sys.exit()

# Find out how many emails are on the server..
numEmails = mailman.CheckMail()
if (numEmails < 0):
    print(mailman.lastErrorText())
    sys.exit()

# Examine the POP3 session log:
print(mailman.pop3SessionLog())

# The POP3 session log will look something like this:

# **** Connected to pop.gmail.com:995
# < +OK Gpop ready for requests from 87.9.200.42 l16mb86351205iok
# > AUTH XOAUTH2 dXNlcj1....VaMDJFAQE=
# < +OK Welcome.
# > STAT
# < +OK 301 1627357
# 
# -- Finished.

# End the POP3 session and close the connection to the GMail server.
success = mailman.Pop3EndSession()
if (success != True):
    print(mailman.lastErrorText())
    sys.exit()

print("-- Finished.")