pywin32: Outlook connection ends with 'operation aborted' on one machine

[tstone]

Hello Python Community!

I'm trying to create an MD5 hash of email contents in order to be able to identify it by its contents afterwards.
Also, the code is intended to be used across multiple machines. I'm running Python 3.10.4 on two computers with pywin32 304:

Output:
C:\Users\thisisme1>pip show pywin32 Name: pywin32 Version: 304 Summary: Python for Window Extensions Home-page: https://github.com/mhammond/pywin32 Author: Mark Hammond (et al) Author-email: [email protected] License: PSF Location: c:\users\thisisme1\appdata\local\programs\python\python310\lib\site-packages Requires: Required-by: jupyter-core, xlwings

When running the following code:

import win32com.client outlook = win32com.client.Dispatch('Outlook.Application').GetNamespace("MAPI") messages = outlook.Folders['[email protected]'].Folders["Inbox"].Folders["Folder1"].Folders["Folder2"].Items messages_list = list(messages) print(messages_list[0].HTMLBody)

On machine 1 (Windows 11), the html body of the first email will be printed. When running the same code on machine 2 (Windows 10), execution will terminate with an error:

Error:
PS C:\Users\thisisme2> & C:/Users/thisisme2/AppData/Local/Programs/Python/Python310/python.exe "c:/Users/thisisme2/.../test.py" Traceback (most recent call last): File "c:\Users\thisisme2\...\test.py", line 7, in <module> print(messages_list[0].HTMLBody) File "C:\Users\thisisme2\AppData\Local\Programs\Python\Python310\lib\site-packages\win32com\client\__init__.py", line 583, in __getattr__ return self._ApplyTypes_(*args) File "C:\Users\thisisme2\AppData\Local\Programs\Python\Python310\lib\site-packages\win32com\client\__init__.py", line 572, in _ApplyTypes_ self._oleobj_.InvokeTypes(dispid, 0, wFlags, retType, argTypes, *args), pywintypes.com_error: (-2147467260, 'Operation aborted', None, None)

"[email protected]" is one of two (machine 2) or several (machine 1) accounts configured. However, running

print(messages_list[0].ReceivedTime)

will work on both machines:

machine 1:

Output:
PS C:\Users\thisisme1> & "C:/Users/thisisme1/AppData/Local/Programs/Python/Python310/python.exe" "c:/Users/thisisme1/.../test.py" 2022-01-28 12:02:00+00:00

machine 2:

Output:
PS C:\Users\thisisme2> & C:/Users/thisisme2/AppData/Local/Programs/Python/Python310/python.exe "c:/Users/thisisme2/.../test.py" 2022-04-22 10:12:03.906000+00:00

I'm out of ideas and appreciate your thoughts on this issue. Thanks a lot!