如何使用 Pywin32 访问 Outlook 中的电子邮件发件人

Question

I would like to print out some information about emails that have Category="Backlog" for instance. I use pywin32 library as below code:

import win32com.client
import os, sys
from datetime import date, datetime, timedelta

def print_messages(messages, sCategory, f):
    msgs = messages.Restrict("[Categories] = '" + sCategory + "'")
    for message in list(msgs):
        try:
            if message.Class == 43:
                if message.SenderEmailType == "EX":
                    strSender = message.Sender.GetExchangeUser().PrimarySmtpAddress
                else:
                    strSender = message.SenderEmailAddress
            f.write(message.EntryID + "\t" + strSender + message.ConversationTopic + "\t" + message.ReceivedTime.strftime("%Y-%m-%d %H:%M") + "\t" + message.Categories + "\n")
        except Exception as e:
            print("Oops!", sys.exc_info()[0], "occurred.")

def main():
    outlook = win32com.client.Dispatch('outlook.application').GetNamespace("MAPI")
    inbox = outlook.GetDefaultFolder(6)
    messages = inbox.Items
    now = datetime.now()
    f = open("C:/Temp/outlook_emails_" + now.strftime("%Y-%m-%d_%H-%M-%S") + ".txt", "a")
    print_messages(messages, "Backlog", f)
    f.close()

if __name__ == "__main__":
    main()

When this code run, it can't get the email sender. Exception happens and it prints lines like:

Oops! <class 'pywintypes.com_error'> occurred.
Oops! <class 'pywintypes.com_error'> occurred.
Oops! <class 'pywintypes.com_error'> occurred.
Oops! <class 'pywintypes.com_error'> occurred.

The issue in lines: strSender = message.Sender.GetExchangeUser().PrimarySmtpAddress and in line strSender = message.SenderEmailAddress . Not sure how to correctly access the sender email address!!

Versions used:

• Windows 10 (64-bit)
• Outlook v16 (64-bit)
• Python 3.9.5 (64-bit)
• pywin32 version: 300

Answer 1

You never check that GetExchangeUser returns a valid object rather than null. The current profile must contain the original Exchange server that houses the GAL user.

Before using GetExchangeUser , check if PidTagSenderSmtpAddress MAPI property is available using message.PropertyAccessor.GetProperty("http://schemas.microsoft.com/mapi/proptag/0x5D01001F")