Hi,
Thank you for inquiry.
Using the DNS method, currently there is some issue with mail servers that has spam filter. I have logged this issue in our system (ID: 19757). We will look into it and will get back to you as soon as this issue is resolved. Sorry for the inconvenience.
Best Regards,
Saqib Razzaq
Support Developer, Aspose Sialkot Team
http://www.aspose.com
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