public static IMailTemplate Create(string passwordResetUrl)
        {
            var template = new TokenSubstitutingMailTemplate(MailSubject, Emails.ResetPasswordRequest);
            template.AddTokenSubstitution(PasswordResetUrlToken, passwordResetUrl);

            return template;
        }
        public static IMailTemplate Create(Session session)
        {
            var template = new TokenSubstitutingMailTemplate(MailSubject, Emails.SessionSubmission);
            template.AddTokenSubstitution(SessionTitleToken, session.Title);
            template.AddTokenSubstitution(SessionAbstractToken, session.Abstract);

            return template;
        }