This is possible in the configuration by navigating to Basic > Start Page & Browser > Advanced > Offline Start Page. You have the option of defining an offline start page which will be used when the default start page cannot be displayed (e.g. due to connection problems).
Trouble logging in? Simply enter your email address OR username in order to reset your password.
For faster and more reliable delivery, add firstname.lastname@example.org to your trusted senders list in your email software.