I have used Aspose.Email.dll version 21.12 in my c# project, but I am getting the ‘Operation has been canceled’ error on sending mail through smtp. Then I tried version 21.6 encountered still the same error. Then I tried for version 21.4 and there I could hardly see the error, but my QA still reported on it.
Can you please check for the issue and also check for the updated version compatibility of the issue as it is encountered in the 21.6 and 21.12 versions of the assembly. Though it is referred to as resolved in version 21.4 per the link below:
Thanks & Regards,