Thank you very much!
In your example, what would be the contents of the
/etc/dovecot/deny.ip file?
--
hippo...@gmail.com
Take a hippopotamus to lunch today.
.---------, 0__0
/ ( oo'---,
/ oo\
,\ |
| \ ,=__/
\ /
/ /------| /|
|__|-' |__|'
On Tue, Aug 1, 2023 at 11:44 AM aki.tuomi via dovecot <dovecot@dovecot.org>
wrote:
> One way is to use
> https://doc.dovecot.org/configuration_manual/authentication/auth_policy/
>
> or you can use
>
> passdb {
> driver = passwd-file
> deny = yes
> args = username_formar=%{rip} /etc/dovecot/deny.ip
> }
>
> or you can use
> https://doc.dovecot.org/configuration_manual/authentication/lua_based_authentication/
>
> and write this in Lua.
>
> Aki
>
>
> -------- Original message --------
> From: Hippo Man <hippo...@gmail.com>
> Date: 8/1/23 18:14 (GMT+02:00)
> To: dovecot@dovecot.org
> Subject: Forcing imap authentication failure for certain IP addresses
>
> I'm running dovecot 2.3.18 under Debian 11.
>
> I want to do something that's a bit unusual: when IMAP connections are
> attempted
> from a few specific IP addresses, I want to force an IMAP authentication
> failure
> from those connections, no matter what user ID and password are specified.
>
> I know that I can use iptables to completely block imap access from those
> IP
> addresses to the IMAP ports. However, in these specific cases, I'd prefer
> that
> the connection goes through to dovecot, but for dovecot then to always
> generate
> authentication failures for those specific connections ... even if a valid
> user ID and password happen to be specified.
>
> Is there a way to do this in dovecot?
>
> Thank you very much in advance.
>
> --
> hippo...@gmail.com
> Take a hippopotamus to lunch today.
>
> .---------, 0__0
> / ( oo'---,
> / oo\
> ,\ |
> | \ ,=__/
> \ /
> / /------| /|
> |__|-' |__|'
>
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