DEFCONF(trusted_groups, root : adm)
## Where the spam filter is.
-DEFCONF(spamd_address, 172.29.199.179)
+DEFCONF(spamd_address, 172.29.199.8)
DEFCONF(spamd_port, 783)
## Default spam limit for incoming mail (multiplied by ten).
DEFCONF(relay_clients, <m4_dnl
; +trusted m4_dnl
; 172.31.80.8 m4_dnl chiark (VPN)
-; 172.29.198.161 ; 2001:ba8:1d9:a000::1:1 m4_dnl national
+; 172.29.198.161 ; 2001:8b0:c92:a000::1:1 m4_dnl national
)
## TLS certificate list.
-DEFCONF(certlist, CONF_sysconf_dir/server.certlist)
+DEFCONF(certlist,
+<:m4_ifelse(t, m4_ifelse(MODE, hub, nil, MODE, srv, nil, t),
+<:CONF_sysconf_dir/server.certlist:>,
+<:CONF_sysconf_dir/${if ={$received_port}{CONF_submission_port}{server}\
+ {${if match_ip{$sender_host_address}{+trusted} \
+ {server}{letsencrypt}}}}.certlist:>):>)
## TLS-related settings. We're assuming GNUTLS here, rather than OpenSSL.
## For local connections we are very strict. For random clients, we try