You're looking at StableBuild's Deleted PyPI mirror - where we index all deleted packages from the Python package registry.

aspose.email-for-python-via-net
18.10

This version was deleted from PyPI around 2025-11-14. Installing fails with:
$ pip3 install aspose.email-for-python-via-net==18.10 ERROR: Could not find a version that satisfies the requirement aspose.email-for-python-via-net==18.10
View other deleted versions of aspose.email-for-python-via-net

Install through StableBuild

You can install this package from StableBuild's PyPI snapshots from before the version was deleted:
pip3 install \ -i https://YOUR_API_KEY.pypimirror.stablebuild.com/2025-11-13/ \ aspose.email-for-python-via-net==18.10
Sign up for StableBuild to get an API key (it's free and takes <60 seconds!)

Or, download files manually

And install manually via pip:
Aspose.Email_for_Python_via_NET-18.10-py3-none-win_amd64.whl (31.7MB)
Aspose.Email_for_Python_via_NET-18.10-py3-none-win32.whl (28.6MB)