I use 1&1 for web hosting and occasionally log into the webmail interface from my desktop to check spam settings etc.
It works fine every time with Firefox but Omniweb just hangs on a screen saying “Please wait until the application is logged in… “. Interestingly, Safari does the same thing so I’m guessing it’s a WebKit thing? Anything you guys can do about it as it’s pretty frustrating to have to launch an alternative browser for one site.
I’ve set up a temporary email account on there so you can see for yourself. If you log in to webmail.1and1.co.uk with the account firstname.lastname@example.org and password omnipotent you should be able to see for yourself