public void AddMailAccounts(List <MailAccountEntity> accounts)
{
_db.MailAccounts.AddRange(accounts);
_db.SaveChanges();
MailAccounts.Clear();
MailAccounts.AddRange(_db.MailAccounts.ToList());
}
// IDisposable
public void Dispose()
{
Users.Clear();
MailAccounts.Clear();
ApiKeys.Clear();
WebConfig = null;
EncryptionService = null;
}