Category Archives: SSL

Exchange Microsoft SSL

Problems with mail flow after changing email certificate

Problems sending email from onpremises to Office 365 accounts in hybrid environment.

 

When configuring a hybrid deployment, you must use and configure certificates that you have purchased from a trusted third-party CA.

 To check if the issue is related to the certificate part, please manually remove the previously created hybrid connectors both in the on-premises Exchange server and Office 365, re-run the HCW (Hybrid Configuration Wizard) to re-create these connectors using the new certificate, then check if the messages can be delivered.

Security SSL

SSL Server Test

https://www.ssllabs.com/ssltest

Security SSL

ASP.NET application serve pages only over HTTPS?

To Serve all the pages over https add this to the Application_BeginRequest method in your Global.asax file.

 Sub Application_BeginRequest(ByVal sender As Object, ByVal e As EventArgs)
   If Request.IsSecureConnection = False Then
     Dim ub As New UriBuilder(Request.Url)
     ub.Scheme = Uri.UriSchemeHttps
     ub.Port = 443
     Response.Redirect(ub.Uri.ToString, True)
   End If
 End Sub