The attached zip contains an email containing a VCalendar as the body that throws and exception with an inner exception of “STANDARD” when loaded. If I remove the BEGIN: STANDARD through the END: STANDARD, the email will load without error. I am using VS 2019 and .NET 4.0. I have downloaded and tested with version 126.96.36.199 of Aspose.Email.
Aspose_VCardStandard_02132020.zip (4.1 MB)