On 15/07/2021 20.03, Gerald Galster wrote: > I have a better idea: > Have a function for whitelisting IPs, possible /24's or similiar, where a login to roundcube or other webmail client (with 2FA) will add the IP onto a whitelist for that account. You could do that with fail2ban. eg https://www.the-art-of-web.com/system/fail2ban-action-whitelist/ P.