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Yahoo.com Mail servers TLS certs are non-Valid | Better HN
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warrenm
8y ago
They expired two weeks ago, and it's only just now being noticed?
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Yahoo.com Mail servers TLS certs are non-Valid
4 points
SpyKiIIer
8y ago
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The SubCA (Symantec Class 3 Secure Server CA - G4) that signed all of their TLS certificates expired September 1, 2017. This breaks any secure mail delivery that verifies the TLS certificate chain.
#Fail Yahoo... again.
