On 3/21/2024 10:21 AM, Viktor Dukhovni via Postfix-users wrote:
On Thu, Mar 21, 2024 at 03:20:23PM +0100, Matus UHLAR - fantomas via
Postfix-users wrote:
Wietse Venema via Postfix-users:
smtpd_discard_ehlo_keyword_address_maps =
cidr:{ {!10/8 silent-discard,dsn} }
On 23.02.24 11:12, Wietse Venema via Postfix-users wrote:
But that does not generalize to hosts with IPv4 and IPv6. In that case,
your approach will be more suitable.
Surely the generalisation is:
smtpd_discard_ehlo_keyword_address_maps =
cidr:{
{if 0.0.0.0/0}
# Private IPv4 addresses
{!10.0.0.0/8 silent-discard,dsn}
Seems to me 172. and 192. would match the above line.
Does cidr support DUNNO?
-- Noel Jones
{!172.16.0.0/12 silent-discard,dsn}
{!192.168.0.0/16 silent-discard,dsn}
{endif}
{if ::/0}
# Unique local, site and link local IPv6 addresses
{!fc00::/7 silent-discard,dsn}
{!fe80::/9 silent-discard,dsn}
{endif}
}
Each set of negative rules can be constrained to its address family by
enclosing it in an if..endif block.
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