We recently changed firewalls to a Sonicwall 2400. When smartphone users try to connect to our mail server they get an error. TestExchangeConnectivity.com shows the following error:
Host name mail.ourdomain.com doesn't match any name found on the server certificate CN=10.0.0.2, OU=HTTPS Management Certificate for SonicWALL (self-signed), O=HTTPS Management Certificate for SonicWALL (self-signed), L=Sunnyvale, S=California, C=US.
I don't think we had any sort of certificate on the old firewall, but can't be certain. Our mail server has the right certs.
Is there a way to get the Sonicwall out of the cert business entirely? If not, what are my options. I tried importing the certs on the mail server to the firewall, but it didn't solve the problem (though I could have done it incorrectly....)