I’m moving to a new e-mail provider for TaskTask e-mail accounts this weekend. If you’re trying to e-mail support and receiving an error that the message cannot be delivered, please send your mail to support [at] tasktaskonline.com. Hopefully the issue that is preventing mail to the normal address from being delivered will be resolved later today. Also consider posting your question on our support forum at http://forum.tasktaskapp.com/.
Everything is back to normal now. Please use support [at] tasktaskapp.com for e-mail support, although I encourage everyone to post their issues to the forums, where other people can help you out as well!