public async Task ExecuteAsync(string smtpUser, string smtpPass, string from, string to, string cc, string username, string password)
{
var client = await Account.SignIn(username, password);
var appts = await Appointments.GetAppointmentsAsync(client, DateTime.Now);
var buffer = FormatAppts(appts);
var fileName = GetFileName();
await Emailer.EmailScheduleAsync(smtpUser, smtpPass, from, to.Split(';', ' ', ',').Where(s => !string.IsNullOrEmpty(s)).ToArray(), cc.Split(';', ' ', ',').Where(s => !string.IsNullOrEmpty(s)).ToArray(), $"CCA Schedule for {DateTime.Now:d}", buffer, fileName, buffer);
}