CODEWITHSUNDEEP
exceptiondnsresolvearsoft.tools.net
user3713080
user3713080

Reputation: 439

ARSoft.Tools.Net.Dns "Response records could not be validated" TLSA

Using the code below to validate DANE records on different mail servers i sometimes (close to 50% of the servers tested) get a "System.AggregateException" with the inner exception "Response records could not be validated".

var resolver = new SelfValidatingInternalDnsSecStubResolver();
        string mx = "mail2.amedia.nu.";
        DnsSecResult<TlsaRecord> result = resolver.ResolveSecure<TlsaRecord>("_25._tcp." + mx, RecordType.Tlsa);
        Console.WriteLine(result.ValidationResult.ToString());

I pasted the first 1000 failed mx servers here for testing: https://pastebin.com/14kqQT06

Any idea why this exception is thrown?

Upvotes: 0

Views: 185

Answers (0)

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