Redirecting ALL TRAFFIC to an external proxy server

Hi All

My internet at work works with a proxy server! I know! It’s a pain. Sometimes I want to use applications that don’t have proxy settings, so I had to install Proxify on my laptop. It works fine with all kind of traffic (HTTP, HTTPS, Media, …)
Now I want to take it to another level. I want to make the Mikrotik the proxify for all of my devices including Smartphones and other laptops.

I did a little research and I found out that I can do it only on HTTP (Port 80). I tried it and it worked with these commands:

ip firewall nat add action=dst-nat dst-port=80 protocol=tcp src-address="client's_used subnet" to-addresses="proxy_address" to-ports="Proxy Port" chain=dstnat

Unfortunately it can’t even open a simple Gmail website since it uses HTTPS.
Is there anyway to redirect ALL TRAFFIC (not just HTTP) to a proxy server using Mikrotik? I would appreciate it if you can help!

Doubtful. The proxy sever wants to read your HTTP traffic, since HTTPS is encrypted - then it won’t work. If attempts to decrypt it, then you’ll get certificate errors.