...look, I've been using email since 1985. There were proprietary systems on BBSs and Compuserve, there were clunky big iron mainframe systems at work, and at first there was mailx on Unix.
Later there was Elm, and then Pine, there was Eudora, there was Squirrel Mail webmail, and there was Outlook after that. Thunderbird gave us an alternative to using that evil mailer from Microsoft. Yahoo gave us a reasonable choice for free and online mail, and before long, AOL even got the memo about coming outside the ivy walls and joining the rest of us.
Along the way, I've used a lot of different software solutions for email.
And now I'm using gmail.
Maybe that isn't the sort of proof you were looking for. People who know me personally know that I won't rave about a technoology unless I believe in it, and I won't dis a technology just because of the company that delivers it.
Especially about email, I'm going to talk about what really works. So consider that I have about 50 unread messages right now, and about 140 total in my email box. For most of the people I know, having only 140 unread messages would be a gigantic victory. And I get more mail than most of those people.
I almost never touch spam. By that I mean that I see about one or two messages every couple of days. I get a lot more spam than that, but it gets very effectively filtered by my friends at Google. On the other hand, they don't trap very much of my legitimate mail and mark it as spam. I can't think of the last time I had to rescue a message from the spam trap after someone insisted that they'd sent it to me.
Look, google mail works. The spam filter works, the strategy for mail handling that is implicit with gmail works. The interface works, and I can work with my email just about anywhere.
My friends and colleagues who know what is going on with the web and the internet choose gmail if they choose a "public utility" email service. And I use it!
That's all I should have to say about it, but I want to add just this one more thing.
A friend of mine said, "I like the interface at Yahoo! better."
This is about much, much more than the interface. The core of gmail is a completely different approach to handling mail. Get that and you will be on the path to freedom. Email is supposed to serve you, not the opposite. Reach for the right tool and you will soon be the master of your email box.
You could look at what google says about gmail.
I can just say what I said to start this. I use it.