I have confirmed my server is supporting tls1.2 with the help of following command.
openssl s_client -connect shop.domain.org:443 -tls1_2
The above command returned a certificate chain and handshake.
But if I check the same with Paypal it failed with following errors. I have executed it from my server.
curl https://tlstest.paypal.com
curl: (35) Unknown SSL protocol error in connection to tlstest.paypal.com:443
wget https://tlstest.paypal.com
--2016-03-07 11:48:29-- https://tlstest.paypal.com/
Resolving tlstest.paypal.com... 104.66.242.99
Connecting to tlstest.paypal.com|104.66.242.99|:443... connected.
Unable to establish SSL connection.
Can somebody explain me why my test with PayPal is failed?