You can corrupt a strong protocol with a weak cipher and render it less secure. However: Just because you use the newest protocols does not necessarily mean you are more secure: Most documentation you read says TLS 1.2 ‘ Should’ be secure (that’s reassuring eh!) This is because these protocols are built on cryptographic ciphers and they are only as secure as those ciphers. Then that was the standard until TLS v1.3 (circa 2018). Problems with it prompted TLS 1.2 (circa 2008). So, what about TLS? Well TLS v1.0 was largely based on, (but not compatible with) SSLv3. All this came to a head with the Poodle exploit and people started getting rid of SSLv3. The problem with version 3 was, (again) that was also ‘ bobbins’. Version 3 however did and was widely supported. But they were, (to be honest) ‘ a bit bobbins’ and full of security holes, so never really took off. Originally we had SSL version 1 and version 2. Once we restored TLS 1.Both SSL and TLS are cryptographic protocols designed to secure communications over a network (remember the internet is just a network). In my case this as the case with the Kemp load balancer we were using – TLS 1.0 was disabled under SSL Properties. This error occurs when TLS 1.0 is disabled either on the end server or on a load balancer in front of the server. “The Microsoft Connectivity Analyzer wasn’t able to obtain the remote SSL certificate” This could have occurred as a result of a network error or because of a problem with the certificate installation.” “The certificate couldn’t be validated because SSL negotiation wasn’t successful. Here I am going to document an error that indicated that the Exchange Server (in this case) was not working, but we could see that the phone was connecting fine to the server.
An excellent resource for Microsoft Exchange Server and Exchange Online administrators and consultants is the Remote Test Connectivity website at or.
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