Gregory's ServerYES, Gmail is killing independent providers, but you're about two decades late in complaining.
They keep proprietary block lists and arrogate the right to decide who is a "spammer". Little ISPs don't have the means to sue Gmail for relief. They have forever harassed my domain, and I have to tell my users to tell their gmail contact to whitelist the domain, explicitly.
I can tell them: really? Spam? PROVE IT, show me the offending email. What spam. They can't. It doesn't exist. But they continue to pretend such -- and I DON'T HAVE THE MONEY TO SUE.
THIS IS AT THE SAME TIME THAT GOOGLE HAD LONG NOW BEEN THE SINGLE LARGEST SOURCE OF DOMESTIC SPAM ON THE INTERNET. Microsoft (wonder of wonders) is second, but in FAR second place.
That is
WE CAN SPAM YOU
but we defend OUR users against what we FALSELY claim is YOUR spam.
The successful class action suit would compel Google to use the SAME filters on their OUTBOUND mail that they use on their INBOUND mail because otherwise they're RACKETEERING, by pretending only they can stop spam, while the other ISPs have to spend time effort and money stopping GOOGLE spam. "Tired of all the spam you get at your ISP? Why not switch?" -- but all that spam CAME FROM YOU ...