I have installed Odoo 10 in Digital Ocean cloud server. Everything is working fine, except mail server.

I tried to configure using below credentials:

smtp server: smtp.gmail.com
port: 465
Connection Security: SSL/TLS

But i getting below error:

Connection Test Failed! Here is what we got instead:
534
5.7.14 <https://accounts.google.com/signin/continue?
sarp=1&scc=1&plt=AKgnsbu8
5.7.14 N6WJLa2VeO6zbTjEmFJlqK-
xwZp_DOLSIEZ2dDpT2_fQfnz5Yi50pFTCHFFzsn0Pt_ZtJq
5.7.14 
12dICdnNGK7724UBxx3AVj8artnFYAHbcB1YhrSgL78hH9SwGp30wZUXmRyWmgEB3XIOex
5.7.14 7NiEAEKY03Qnzn_VWeIEDjjksfrTxKX1em_b6ZVfHo0XIwg2cf-
9mhmvLHoR__vVE7-Vcm
5.7.14 ZCFBNwoCwLA__i4SOAuE5UUPIOQEQ> Please log in via your web 
browser and
5.7.14 then try again.
5.7.14 Learn more at
5.7.14 https://support.google.com/mail/answer/78754 t53sm493061qtc.66 
- gsmtp

But i have configured in my local machine, it works fine.

How can i resolve this?