Register a new account with IMAP and SMTP settings (reference)
curl -XPOST "http://127.0.0.1:3000/v1/account" \
-H "Authorization: Bearer f77cf263b70488c7a35bf1539fd544a81a88711ff74326ce9793022df08d91b9" \
-H "Content-type: application/json" \
-d '{
"account": "example",