@Override
    public String toString() {
        return new StringJoiner(", ", SmtpEmailConfiguration.class.getSimpleName() + "[", "]")
                .add("enabled=" + enabled)
                .add("mock=" + mock)
                .add("ssl=" + ssl)
                .add("startTLSMode=" + startTLSMode)
                .add("fromName='" + fromName + "'")
                .add("fromEmail='" + fromEmail + "'")
                .add("host='" + host + "'")
                .add("port=" + port)
                .add("authMethods=" + Arrays.toString(authMethods))
                .add("username='xxxx'")
                .add("password='xxxx'")
                .toString();
    }
@author Marc Savy {@literal <marc@blackparrotlabs.io>}
manager/api/rest-impl/src/main/java/io/apiman/manager/api/notifications/email/SmtpEmailConfiguration.java