i have problem with tracking pixel in mso, when i send my campain to gmail it shows and track correctly, but in mso it doesn't show(shows like red x). I found some topics here, but there isn't solution. Every topic say to set mso to force images. That isn't solution for me. I can't manage settings off all target clients. Here is code of pixel.

    <img src="https://www.google-analytics.com/collect?v=1&tid=XXX&cid=XXX&t=event&ec=XXX&ea=open&cs=newsletter&cn=XXX&cm=email"/>

Is here any solution for this?