Nikolaos Milas:
> Hello,
>
> We are using Postfix v3.2.4and we arefacing the followingproblem:
> Aclient (a data storage system) with an IPv6 address of
> [2001:648:2011:a21:320e:d5ff:fec6:b55] tries to send an (autosupport)
> email and it's being denied access:
>
> Feb 23 06:22:17 vmail2 postfix/smtpd[16146]: NOQUEUE: reject: RCPT from
> unknown[2001:648:2011:a21:320e:d5ff:fec6:b55]: 554 5.7.1
> <[email protected]>: Relay access denied;
> from=<[email protected]> to=<[email protected]>
> proto=SMTP helo=<DD2500.astro.private.noa.gr>
>
> All /48 IPv6 address blockis included in mynetworks: ...,
> [2001:648:2011::]/48, ...
>
> The client does not support TLS or authentication. For such clients we
> provide explicit permission:
>
> smtpd_client_restrictions =
> ? ...
> ? check_client_access cidr:/etc/postfix/non-tls-clients.cidr
> ? permit_sasl_authenticated
> ? reject
Relay access is enforced in smtpd_RELAY_restrictions (or historically,
in smtpd_RECIPIENT_restrictions).
Wietse
