Opening in 1998, Garfield Mail -- based at gmail.garfield.com -- was an email provider for, by, and only for people with extreme "cattitude," with anyone who signed up earning themselves a hella (cat) fancy @catsrule.garfield.com email address. It's also thought that having one of these email addresses was a prerequisite for accessing the official site's bulletin boards, so alongside being rad as hell, users could also download as much sweet, sweet fanfiction as their hearts and loins desired.
The service carried on until sometime in the early '00s before disappearing off the face of the planet -- and not because it was absorbed/destroyed by Google. It just vanished. Except vanished doesn't mean dead. When Bryan Menegus investigated Garfield Mail in 2018, he found that not only were there several working email addresses with the @catsrule.garfield.com suffix but that an email address with this suffix appears twice in a massive cache of emails belonging to the Syrian government that was released by Wikileaks in 2012.
So, who knows: maybe the site's users are still out there, waiting for Google et al. to collapse before returning to the surface -- after which, and with backing from President Bashar al-Assad, they'll conquer the planet in the name of Garfield, Odie, and Jon. Or it'll completely die out after everyone forgets their password. Whichever, really.