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exim-forwarder/exim.conf
Wolfgang Hottgenroth f57a2fedb4
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2025-10-24 10:17:25 +02:00

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domainlist forward_domains = lsearch;/etc/exim/db/forward_domains
primary_hostname = home.of.the.smiling-proxy.de
tls_advertise_hosts = *
tls_certificate = /etc/exim/ssl/server.crt
tls_privatekey = /etc/exim/ssl/server.key
log_file_path = syslog
# acl_smtp_connect = acl_connect
acl_smtp_helo = acl_helo
acl_smtp_rcpt = acl_rcpt
acl_smtp_data = acl_data
begin acl
# acl_connect:
# deny message = Reverse DNS required
# !verify = reverse_host_lookup
# accept
acl_helo:
deny message = Invalid HELO/EHLO name
condition = ${if match{$sender_helo_name}{\N^(localhost|localhost\.localdomain|\[?[0-9]{1,3}(\.[0-9]{1,3}){3}\]?)$\N}{yes}{no}}
accept
acl_rcpt:
# recipient verification
deny message = Access denied (1)
!verify = recipient
# SPF check
deny message = Access denied (2)
spf = fail
# Greylisting
defer message = Try again later
!seen = 72h / key=${sender_address}_${local_part}@${domain}
# Rate limit
deny message = Access denied (3)
ratelimit = 10 / 10m / strict
accept condition = ${if match_domain{$domain}{+forward_domains}{yes}{no}}
deny message = Access denied (4)
acl_data:
warn dkim_status = invalid
add_header = X-DKIM-Status: invalid
warn dkim_status = pass
add_header = X-DKIM-Status: pass
accept
begin routers
forward_aliases:
driver = redirect
domains = +forward_domains
data = ${lookup{$local_part@$domain}lsearch{/etc/exim/db/forward_addresses}}
no_expn
allow_defer
allow_fail
dnslookup_out:
driver = dnslookup
domains = ! +forward_domains
transport = remote_smtp
no_more
begin transports
remote_smtp:
driver = smtp
hosts_require_tls = *