TurboTax does not provide support through email.
If you are unable to use phone support, you can contact a TurboTax Support agent directly through messaging at Facebook or Twitter for assistance.
https://twitter.com/TeamTurboTax
or
https://www.facebook.com/turbotax
Or you can start a thread on your issue in this forum, and may receive help here, unless it is something account-specific.
You can start a thread at the link below.
https://ttlc.intuit.com/questions/newWhen you go to the form at the link, the first box is for a summary of your question, like a title, and is limited to 170 characters.. If you need more room, lower on the form you will come to another box with plenty of room to enter details. This is a public Internet forum, so don't post any personal info.
