2Yahoo.com Mail servers TLS certs are non-ValidThe 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.show more4SpyKiIIer8y ago1
3Barracuda Networks Email Services Down “Degraded” (opens in new tab)(status.barracuda.com)1SpyKiIIer9y ago2
