Hi Sarfaraj,
Thank you for your feedback.
I am sure you have mentioned the problem of opening the PST in Outlook after deleting the messages. I am also sure this problem has been rectified in previous version of Aspose.Email for .NET v1.3.0. If you are experiencing the same problem then please create a new post and attach your sample file to it, so we may replicate it and log it for correction purposes. Also, this thread has become lengthy and it would be a good approach to start a new thread for every new issue.
Regarding the deletion of messages from PST based on your CSV, please share a sample application with your CSV and PST files. We will look into it to further guide you in this regard.
Babar Raza
Support Developer,
Aspose Sialkot Team
http://www.aspose.com/
Aspose - Your File Format Experts