For the record, I have already tried using EasyVPN, iSSTP, iSSTP2.

I am using OS X Yosemite, I was wondering if there is any solution that can allow me to connect to a SSTP based VPN. I am trying to connect to a Windows based SSTP VPN network.If you want to ensure your Mac automatically reconnected to your VPN or connect to an OpenVPN VPN, you’ll need a third-party app. Mac OS X has built-in support for connecting to most common types of VPNs.Point-to-site VPN can use one of the following protocols:

This app is a VPN client for the last VPN protocol developed by Microsoft. This can easily be done with the help of BlueStacks or Andy OS Android emulator. You can now play SSTP VPN Client for PC on a desktop/laptop running Windows XP, Windows 7, Windows 8, Windows 8.1, Windows 10 and MacOS/OS X. IKEv2 VPN can be used to connect from Mac devices (OSX versions 10.11 and above). IKEv2 VPN, a standards-based IPsec VPN solution. SSTP supports up to 128 concurrent connections only regardless of the gateway SKU. Azure supports all versions of Windows that have SSTP (Windows 7 and later).

SSTP is only supported on Windows devices. This article applies to the Resource Manager deployment model and talks about ways to overcome the 128 concurrent connection limit of SSTP by transitioning to OpenVPN protocol or IKEv2. A P2S connection is established by starting it from the client computer. A Point-to-Site (P2S) VPN gateway connection lets you create a secure connection to your virtual network from an individual client computer.

Osx vpn clients for azure vpn gateway