Posted by Andrew.
The Google Chrome version 18.104.22.168 release comes to fix the problem with sending mail with Yahoo! Mail, it includes a workaround that changes the user agent string in order to make the browser work with Microsoft's Hotmail.
Google Employee Shawn post a guide on Google Chrome Help Forum, here is the original guide post:
[Google Chrome Guide Post] Hotmail Fix
Good news for you all. :) We've submitted a patch that's a temporary workaround for issues with Hotmail as well as Yahoo mail. We're in discussion with Microsoft about the issue and while the Microsoft Hotmail team works on a proper fix, we're deploying this workaround that changes the user agent string that Google Chrome sends when requesting URLs that end with mail.live.com.
If you've been using the --user-agent switch to use Hotmail, you can remove the switch from your shortcuts with this release.
Everyone with the stable and beta version of Google Chrome will be eventually updated to version 22.214.171.124 or you can also update on demand by going to the Tools (wrench) menu, selecting 'About Google Chrome' and checking for updates.
I included a link to our blog post with more information about the update below.
This release 126.96.36.199 also includes two security updates. The release notes have the full list of changes.