Sorry for the top posting, I have not setup my new phone yet.
Here the script sample: https://github.com/progmaticltd/homebox/blob/dev/install/playbooks/roles/dovecot/files/access-check-whitelist.sh André. Tue Apr 30 15:33:51 GMT+01:00 2019 andre <an...@rodier.me>: > > Hello, Zhang. > > You can easily do this without a new feature in Dovecot. > > - Create a post login script, for instance, in bash. > - install grepcidr on your server. > > Your post login script can use grepcidr to check for white or black list. > > https://wiki.dovecot.org/PostLoginScripting > > I have implemented this myself on a small open source project, I can send you > the links of you want. > > André. > > Tue Apr 30 02:57:18 GMT+01:00 2019 Zhang Huangbin via dovecot > <dovecot@dovecot.org>: > >> Dear all, >> >> We use `allow_nets`[1] to restrict login clients, it works fine. >> Recently we need to allow some users to login from everywhere except some >> IP/networks, how can we accomplish this with "allow_nets"? >> >> Tried allow_nets="!a.b.c.d", but Dovecot reports error "allow_nets: Invalid >> network '!a.b.c.d'". >> >> Can we have this feature? >> >> i guess it should be done in function "auth_request_validate_networks"[2] in >> file src/auth/auth-request.c. >> >> [1] allow_nets: >> https://wiki.dovecot.org/PasswordDatabase/ExtraFields/AllowNets >> [2] >> https://github.com/dovecot/core/blob/fbc3ccc4a9a02b82073585a33254eacedc6a9950/src/auth/auth-request.c#L1990 >