SparkPost Library not works

[gotorresgt18]

I had using it since 2016 and since and from July 23, 2018 to date, the class library dont works.

[Nemisys]

I just noticed emails failing to send as well.

Edit: The fix for me was mentioned in the other issue thread.
Add this following to your code before you attempt to send email.

System.Net.ServicePointManager.SecurityProtocol = System.Net.SecurityProtocolType.Tls11 | System.Net.SecurityProtocolType.Tls12;

[gotorresgt18]

I had seen this link and did what I was told there but it did not work.

https://www.sparkpost.com/docs/tech-resources/tlsv1-0-test-hostname/

But I just did what you told me and everything worked wonders, thank you very much.