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Merge pull request mailcow#5350 from mailcow/staging
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2023-07a
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@DerLinkman
DerLinkman authored Jul 31, 2023
2 parents 020cb21 + 57d849a commit a1fb962
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Showing 7 changed files with 310 additions and 233 deletions.
7 changes: 3 additions & 4 deletions data/Dockerfiles/postfix/Dockerfile
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Expand Up @@ -17,10 +17,10 @@ RUN groupadd -g 102 postfix \
ca-certificates \
curl \
dirmngr \
dnsutils \
dnsutils \
gnupg \
libsasl2-modules \
mariadb-client \
mariadb-client \
perl \
postfix \
postfix-mysql \
Expand All @@ -32,8 +32,7 @@ RUN groupadd -g 102 postfix \
syslog-ng \
syslog-ng-core \
syslog-ng-mod-redis \
tzdata \
whois \
tzdata \
&& rm -rf /var/lib/apt/lists/* \
&& touch /etc/default/locale \
&& printf '#!/bin/bash\n/usr/sbin/postconf -c /opt/postfix/conf "$@"' > /usr/local/sbin/postconf \
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140 changes: 24 additions & 116 deletions data/Dockerfiles/postfix/postfix.sh
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Expand Up @@ -397,136 +397,40 @@ echo -e "\e[33mChecking if ASN for your IP is listed for Spamhaus Bad ASN List..
if [ -n "$SPAMHAUS_DQS_KEY" ]; then
echo -e "\e[32mDetected SPAMHAUS_DQS_KEY variable from mailcow.conf...\e[0m"
echo -e "\e[33mUsing DQS Blocklists from Spamhaus!\e[0m"
cat <<EOF > /opt/postfix/conf/dns_blocklists.cf
# Autogenerated by mailcow
postscreen_dnsbl_sites = wl.mailspike.net=127.0.0.[18;19;20]*-2
hostkarma.junkemailfilter.com=127.0.0.1*-2
list.dnswl.org=127.0.[0..255].0*-2
list.dnswl.org=127.0.[0..255].1*-4
list.dnswl.org=127.0.[0..255].2*-6
list.dnswl.org=127.0.[0..255].3*-8
ix.dnsbl.manitu.net*2
bl.spamcop.net*2
bl.suomispam.net*2
hostkarma.junkemailfilter.com=127.0.0.2*3
hostkarma.junkemailfilter.com=127.0.0.4*2
hostkarma.junkemailfilter.com=127.0.1.2*1
backscatter.spameatingmonkey.net*2
bl.ipv6.spameatingmonkey.net*2
bl.spameatingmonkey.net*2
b.barracudacentral.org=127.0.0.2*7
bl.mailspike.net=127.0.0.2*5
bl.mailspike.net=127.0.0.[10;11;12]*4
dnsbl.sorbs.net=127.0.0.10*8
dnsbl.sorbs.net=127.0.0.5*6
dnsbl.sorbs.net=127.0.0.7*3
dnsbl.sorbs.net=127.0.0.8*2
dnsbl.sorbs.net=127.0.0.6*2
dnsbl.sorbs.net=127.0.0.9*2
${SPAMHAUS_DQS_KEY}.zen.dq.spamhaus.net=127.0.0.[4..7]*6
${SPAMHAUS_DQS_KEY}.zen.dq.spamhaus.org=127.0.0.[10;11]*8
${SPAMHAUS_DQS_KEY}.zen.dq.spamhaus.org=127.0.0.3*4
${SPAMHAUS_DQS_KEY}.zen.dq.spamhaus.org=127.0.0.2*3
${SPAMHAUS_DQS_KEY}.dbl.dq.spamhaus.net=127.0.0.3*4
${SPAMHAUS_DQS_KEY}.zrd.dq.spamhaus.net=127.0.0.2*3
cat <<EOF > /tmp/spamhaus.cf
# Autogenerated by mailcow, using Spamhaus DQS lists
${SPAMHAUS_DQS_KEY}.zen.dq.spamhaus.net=127.0.0.[4..7]*6
${SPAMHAUS_DQS_KEY}.zen.dq.spamhaus.net=127.0.0.[10;11]*8
${SPAMHAUS_DQS_KEY}.zen.dq.spamhaus.net=127.0.0.3*4
${SPAMHAUS_DQS_KEY}.zen.dq.spamhaus.net=127.0.0.2*3
${SPAMHAUS_DQS_KEY}.dbl.dq.spamhaus.net=127.0.0.3*4
${SPAMHAUS_DQS_KEY}.zrd.dq.spamhaus.net=127.0.0.2*3
EOF

else
response=$(curl --connect-timeout 15 --retry 5 --max-time 30 -s -o /dev/null -w "%{http_code}" "https://asn-check.mailcow.email")
if [ "$response" -eq 403 ]; then
response=$(curl --connect-timeout 15 --max-time 30 -s -o /dev/null -w "%{http_code}" "https://asn-check.mailcow.email")
if [ "$response" -eq 503 ]; then
echo -e "\e[31mThe AS of your IP is listed as a banned AS from Spamhaus!\e[0m"
echo -e "\e[33mNo SPAMHAUS_DQS_KEY found... Skipping Spamhaus blocklists entirely!\e[0m"
cat <<EOF > /opt/postfix/conf/dns_blocklists.cf
# Autogenerated by mailcow
postscreen_dnsbl_sites = wl.mailspike.net=127.0.0.[18;19;20]*-2
hostkarma.junkemailfilter.com=127.0.0.1*-2
list.dnswl.org=127.0.[0..255].0*-2
list.dnswl.org=127.0.[0..255].1*-4
list.dnswl.org=127.0.[0..255].2*-6
list.dnswl.org=127.0.[0..255].3*-8
ix.dnsbl.manitu.net*2
bl.spamcop.net*2
bl.suomispam.net*2
hostkarma.junkemailfilter.com=127.0.0.2*3
hostkarma.junkemailfilter.com=127.0.0.4*2
hostkarma.junkemailfilter.com=127.0.1.2*1
backscatter.spameatingmonkey.net*2
bl.ipv6.spameatingmonkey.net*2
bl.spameatingmonkey.net*2
b.barracudacentral.org=127.0.0.2*7
bl.mailspike.net=127.0.0.2*5
bl.mailspike.net=127.0.0.[10;11;12]*4
dnsbl.sorbs.net=127.0.0.10*8
dnsbl.sorbs.net=127.0.0.5*6
dnsbl.sorbs.net=127.0.0.7*3
dnsbl.sorbs.net=127.0.0.8*2
dnsbl.sorbs.net=127.0.0.6*2
dnsbl.sorbs.net=127.0.0.9*2
cat <<EOF > /tmp/spamhaus.cf
# Autogenerated by mailcow, using no Spamhaus DNSBL
EOF
elif [ "$response" -eq 200 ]; then
echo -e "\e[32mThe AS of your IP is NOT listed as a banned AS from Spamhaus!\e[0m"
echo -e "\e[33mUsing the open Spamhaus blocklists.\e[0m"
cat <<EOF > /opt/postfix/conf/dns_blocklists.cf
# Autogenerated by mailcow
postscreen_dnsbl_sites = wl.mailspike.net=127.0.0.[18;19;20]*-2
hostkarma.junkemailfilter.com=127.0.0.1*-2
list.dnswl.org=127.0.[0..255].0*-2
list.dnswl.org=127.0.[0..255].1*-4
list.dnswl.org=127.0.[0..255].2*-6
list.dnswl.org=127.0.[0..255].3*-8
ix.dnsbl.manitu.net*2
bl.spamcop.net*2
bl.suomispam.net*2
hostkarma.junkemailfilter.com=127.0.0.2*3
hostkarma.junkemailfilter.com=127.0.0.4*2
hostkarma.junkemailfilter.com=127.0.1.2*1
backscatter.spameatingmonkey.net*2
bl.ipv6.spameatingmonkey.net*2
bl.spameatingmonkey.net*2
b.barracudacentral.org=127.0.0.2*7
bl.mailspike.net=127.0.0.2*5
bl.mailspike.net=127.0.0.[10;11;12]*4
dnsbl.sorbs.net=127.0.0.10*8
dnsbl.sorbs.net=127.0.0.5*6
dnsbl.sorbs.net=127.0.0.7*3
dnsbl.sorbs.net=127.0.0.8*2
dnsbl.sorbs.net=127.0.0.6*2
dnsbl.sorbs.net=127.0.0.9*2
zen.spamhaus.org=127.0.0.[10;11]*8
zen.spamhaus.org=127.0.0.[4..7]*6
zen.spamhaus.org=127.0.0.3*4
zen.spamhaus.org=127.0.0.2*3
cat <<EOF > /tmp/spamhaus.cf
# Autogenerated by mailcow, using public spamhaus lists
zen.spamhaus.org=127.0.0.[10;11]*8
zen.spamhaus.org=127.0.0.[4..7]*6
zen.spamhaus.org=127.0.0.3*4
zen.spamhaus.org=127.0.0.2*3
EOF

else
echo -e "\e[31mWe couldn't determine your AS... (maybe DNS/Network issue?) Response Code: $response\e[0m"
echo -e "\e[33mDeactivating Spamhaus DNS Blocklists to be on the safe site!\e[0m"
cat <<EOF > /opt/postfix/conf/dns_blocklists.cf
# Autogenerated by mailcow
postscreen_dnsbl_sites = wl.mailspike.net=127.0.0.[18;19;20]*-2
hostkarma.junkemailfilter.com=127.0.0.1*-2
list.dnswl.org=127.0.[0..255].0*-2
list.dnswl.org=127.0.[0..255].1*-4
list.dnswl.org=127.0.[0..255].2*-6
list.dnswl.org=127.0.[0..255].3*-8
ix.dnsbl.manitu.net*2
bl.spamcop.net*2
bl.suomispam.net*2
hostkarma.junkemailfilter.com=127.0.0.2*3
hostkarma.junkemailfilter.com=127.0.0.4*2
hostkarma.junkemailfilter.com=127.0.1.2*1
backscatter.spameatingmonkey.net*2
bl.ipv6.spameatingmonkey.net*2
bl.spameatingmonkey.net*2
b.barracudacentral.org=127.0.0.2*7
bl.mailspike.net=127.0.0.2*5
bl.mailspike.net=127.0.0.[10;11;12]*4
dnsbl.sorbs.net=127.0.0.10*8
dnsbl.sorbs.net=127.0.0.5*6
dnsbl.sorbs.net=127.0.0.7*3
dnsbl.sorbs.net=127.0.0.8*2
dnsbl.sorbs.net=127.0.0.6*2
dnsbl.sorbs.net=127.0.0.9*2
cat <<EOF > /tmp/spamhaus.cf
# Autogenerated by mailcow, using no Spamhaus DNSBL
EOF
fi
fi
Expand All @@ -539,6 +443,10 @@ echo -e "myhostname = ${MAILCOW_HOSTNAME}\n$(cat /opt/postfix/conf/extra.cf)" >

cat /opt/postfix/conf/extra.cf >> /opt/postfix/conf/main.cf

# Append postscreen dnsbl sites to main.cf
cat /opt/postfix/conf/dns_blocklists.cf >> /opt/postfix/conf/main.cf
cat /tmp/spamhaus.cf >> /opt/postfix/conf/main.cf

if [ ! -f /opt/postfix/conf/custom_transport.pcre ]; then
echo "Creating dummy custom_transport.pcre"
touch /opt/postfix/conf/custom_transport.pcre
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25 changes: 25 additions & 0 deletions data/conf/postfix/dns_blocklists.cf
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Original file line number Diff line number Diff line change
@@ -0,0 +1,25 @@
# Content loaded from dns_blocklists.cf, edit only if really necessary!
postscreen_dnsbl_sites = wl.mailspike.net=127.0.0.[18;19;20]*-2
hostkarma.junkemailfilter.com=127.0.0.1*-2
list.dnswl.org=127.0.[0..255].0*-2
list.dnswl.org=127.0.[0..255].1*-4
list.dnswl.org=127.0.[0..255].2*-6
list.dnswl.org=127.0.[0..255].3*-8
ix.dnsbl.manitu.net*2
bl.spamcop.net*2
bl.suomispam.net*2
hostkarma.junkemailfilter.com=127.0.0.2*3
hostkarma.junkemailfilter.com=127.0.0.4*2
hostkarma.junkemailfilter.com=127.0.1.2*1
backscatter.spameatingmonkey.net*2
bl.ipv6.spameatingmonkey.net*2
bl.spameatingmonkey.net*2
b.barracudacentral.org=127.0.0.2*7
bl.mailspike.net=127.0.0.2*5
bl.mailspike.net=127.0.0.[10;11;12]*4
dnsbl.sorbs.net=127.0.0.10*8
dnsbl.sorbs.net=127.0.0.5*6
dnsbl.sorbs.net=127.0.0.7*3
dnsbl.sorbs.net=127.0.0.8*2
dnsbl.sorbs.net=127.0.0.6*2
dnsbl.sorbs.net=127.0.0.9*2
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