# # processes # @test "checking process: postfix" { run docker exec mail /bin/bash -c "ps aux --forest | grep -v grep | grep '/usr/lib/postfix/master'" [ "$status" -eq 0 ] } @test "checking process: clamd" { run docker exec mail /bin/bash -c "ps aux --forest | grep -v grep | grep '/usr/sbin/clamd'" [ "$status" -eq 0 ] } @test "checking process: new" { run docker exec mail /bin/bash -c "ps aux --forest | grep -v grep | grep '/usr/sbin/amavisd-new'" [ "$status" -eq 0 ] } @test "checking process: opendkim" { run docker exec mail /bin/bash -c "ps aux --forest | grep -v grep | grep '/usr/sbin/opendkim'" [ "$status" -eq 0 ] } @test "checking process: opendmarc" { run docker exec mail /bin/bash -c "ps aux --forest | grep -v grep | grep '/usr/sbin/opendmarc'" [ "$status" -eq 0 ] } @test "checking process: fail2ban (disabled in default configuration)" { run docker exec mail /bin/bash -c "ps aux --forest | grep -v grep | grep '/usr/bin/python /usr/bin/fail2ban-server'" [ "$status" -eq 1 ] } @test "checking process: fail2ban (fail2ban server enabled)" { run docker exec mail_fail2ban /bin/bash -c "ps aux --forest | grep -v grep | grep '/usr/bin/python /usr/bin/fail2ban-server'" [ "$status" -eq 0 ] } # # imap # @test "checking process: dovecot imaplogin (enabled in default configuration)" { run docker exec mail /bin/bash -c "ps aux --forest | grep -v grep | grep '/usr/sbin/dovecot'" [ "$status" -eq 0 ] } @test "checking process: dovecot imaplogin (disabled using SMTP_ONLY)" { run docker exec mail_smtponly /bin/bash -c "ps aux --forest | grep -v grep | grep '/usr/sbin/dovecot'" [ "$status" -eq 1 ] } @test "checking imap: server is ready with STARTTLS" { run docker exec mail /bin/bash -c "nc -w 2 0.0.0.0 143 | grep '* OK' | grep 'STARTTLS' | grep 'ready'" [ "$status" -eq 0 ] } @test "checking imap: authentication works" { run docker exec mail /bin/sh -c "nc -w 1 0.0.0.0 143 < /tmp/docker-mailserver-test/auth/imap-auth.txt" [ "$status" -eq 0 ] } # # pop # @test "checking pop: server is ready" { run docker exec mail_pop3 /bin/bash -c "nc -w 1 0.0.0.0 110 | grep '+OK'" [ "$status" -eq 0 ] } @test "checking pop: authentication works" { run docker exec mail_pop3 /bin/sh -c "nc -w 1 0.0.0.0 110 < /tmp/docker-mailserver-test/auth/pop3-auth.txt" [ "$status" -eq 0 ] } # # sasl # @test "checking sasl: doveadm auth test works with good password" { run docker exec mail /bin/sh -c "doveadm auth test -x service=smtp user2@otherdomain.tld mypassword | grep 'auth succeeded'" [ "$status" -eq 0 ] } @test "checking sasl: doveadm auth test fails with bad password" { run docker exec mail /bin/sh -c "doveadm auth test -x service=smtp user2@otherdomain.tld BADPASSWORD | grep 'auth failed'" [ "$status" -eq 0 ] } @test "checking sasl: sasl_passwd.db exists" { run docker exec mail [ -f /etc/postfix/sasl_passwd.db ] [ "$status" -eq 0 ] } # # logs # @test "checking logs: mail related logs should be located in a subdirectory" { run docker exec mail /bin/sh -c "ls -1 /var/log/mail/ | grep -E 'clamav|freshclam|mail'|wc -l" [ "$status" -eq 0 ] [ "$output" = 3 ] } # # smtp # @test "checking smtp: authentication works with good password (plain)" { run docker exec mail /bin/sh -c "nc -w 5 0.0.0.0 25 < /tmp/docker-mailserver-test/auth/smtp-auth-plain.txt | grep 'Authentication successful'" [ "$status" -eq 0 ] } @test "checking smtp: authentication fails with wrong password (plain)" { run docker exec mail /bin/sh -c "nc -w 20 0.0.0.0 25 < /tmp/docker-mailserver-test/auth/smtp-auth-plain-wrong.txt | grep 'authentication failed'" [ "$status" -eq 0 ] } @test "checking smtp: authentication works with good password (login)" { run docker exec mail /bin/sh -c "nc -w 5 0.0.0.0 25 < /tmp/docker-mailserver-test/auth/smtp-auth-login.txt | grep 'Authentication successful'" [ "$status" -eq 0 ] } @test "checking smtp: authentication fails with wrong password (login)" { run docker exec mail /bin/sh -c "nc -w 20 0.0.0.0 25 < /tmp/docker-mailserver-test/auth/smtp-auth-login-wrong.txt | grep 'authentication failed'" [ "$status" -eq 0 ] } @test "checking smtp: delivers mail to existing account" { run docker exec mail /bin/sh -c "grep 'status=sent (delivered via dovecot service)' /var/log/mail/mail.log | wc -l" [ "$status" -eq 0 ] [ "$output" -eq 4 ] } @test "checking smtp: delivers mail to existing alias" { run docker exec mail /bin/sh -c "grep 'to=, orig_to=' /var/log/mail/mail.log | grep 'status=sent' | wc -l" [ "$status" -eq 0 ] [ "$output" = 1 ] } @test "checking smtp: delivers mail to regexp alias" { run docker exec mail /bin/sh -c "grep 'to=, orig_to=' /var/log/mail/mail.log | grep 'status=sent' | wc -l" [ "$status" -eq 0 ] [ "$output" = 1 ] } @test "checking smtp: user1 should have received 3 mails" { run docker exec mail /bin/sh -c "ls -A /var/mail/localhost.localdomain/user1/new | wc -l" [ "$status" -eq 0 ] [ "$output" = 3 ] } @test "checking smtp: rejects mail to unknown user" { run docker exec mail /bin/sh -c "grep ': Recipient address rejected: User unknown in virtual mailbox table' /var/log/mail/mail.log | wc -l" [ "$status" -eq 0 ] [ "$output" = 1 ] } @test "checking smtp: redirects mail to external aliases" { run docker exec mail /bin/sh -c "grep -- '-> ' /var/log/mail/mail.log | wc -l" [ "$status" -eq 0 ] [ "$output" = 2 ] } @test "checking smtp: rejects spam" { run docker exec mail /bin/sh -c "grep 'Blocked SPAM' /var/log/mail/mail.log | grep spam@external.tld | wc -l" [ "$status" -eq 0 ] [ "$output" = 1 ] } @test "checking smtp: rejects virus" { run docker exec mail /bin/sh -c "grep 'Blocked INFECTED' /var/log/mail/mail.log | grep virus@external.tld | wc -l" [ "$status" -eq 0 ] [ "$output" = 1 ] } # # accounts # @test "checking accounts: generated 'postfix-accounts.cf' matches template" { run diff test/config/example.postfix-accounts.cf test/config/postfix-accounts.cf [ "$status" -eq 0 ] } @test "checking accounts: user accounts" { run docker exec mail doveadm user '*' [ "$status" -eq 0 ] [ "${lines[0]}" = "user1@localhost.localdomain" ] [ "${lines[1]}" = "user2@otherdomain.tld" ] } @test "checking accounts: user mail folders for user1" { run docker exec mail /bin/bash -c "ls -A /var/mail/localhost.localdomain/user1 | grep -E '.Drafts|.Sent|.Trash|cur|new|subscriptions|tmp' | wc -l" [ "$status" -eq 0 ] [ "$output" -eq 7 ] } @test "checking accounts: user mail folders for user2" { run docker exec mail /bin/bash -c "ls -A /var/mail/otherdomain.tld/user2 | grep -E '.Drafts|.Sent|.Trash|cur|new|subscriptions|tmp' | wc -l" [ "$status" -eq 0 ] [ "$output" -eq 7 ] } # # postfix # @test "checking postfix: vhost file is correct" { run docker exec mail cat /etc/postfix/vhost [ "$status" -eq 0 ] [ "${lines[0]}" = "localhost.localdomain" ] [ "${lines[1]}" = "otherdomain.tld" ] } @test "checking postfix: main.cf overrides" { run docker exec mail grep -q 'max_idle = 600s' /tmp/docker-mailserver/postfix-main.cf [ "$status" -eq 0 ] run docker exec mail grep -q 'readme_directory = /tmp' /tmp/docker-mailserver/postfix-main.cf [ "$status" -eq 0 ] } # # dovecot # @test "checking dovecot: config additions" { run docker exec mail grep -q 'mail_max_userip_connections = 69' /tmp/docker-mailserver/dovecot.cf [ "$status" -eq 0 ] run docker exec mail /bin/sh -c "doveconf | grep 'mail_max_userip_connections = 69'" [ "$status" -eq 0 ] [ "$output" = 'mail_max_userip_connections = 69' ] } # # spamassassin # @test "checking spamassassin: docker env variables are set correctly (default)" { run docker exec mail_pop3 /bin/sh -c "grep '\$sa_tag_level_deflt' /etc/amavis/conf.d/20-debian_defaults | grep '= 2.0'" [ "$status" -eq 0 ] run docker exec mail_pop3 /bin/sh -c "grep '\$sa_tag2_level_deflt' /etc/amavis/conf.d/20-debian_defaults | grep '= 6.31'" [ "$status" -eq 0 ] run docker exec mail_pop3 /bin/sh -c "grep '\$sa_kill_level_deflt' /etc/amavis/conf.d/20-debian_defaults | grep '= 6.31'" [ "$status" -eq 0 ] } @test "checking spamassassin: docker env variables are set correctly (custom)" { run docker exec mail /bin/sh -c "grep '\$sa_tag_level_deflt' /etc/amavis/conf.d/20-debian_defaults | grep '= 1.0'" [ "$status" -eq 0 ] run docker exec mail /bin/sh -c "grep '\$sa_tag2_level_deflt' /etc/amavis/conf.d/20-debian_defaults | grep '= 2.0'" [ "$status" -eq 0 ] run docker exec mail /bin/sh -c "grep '\$sa_kill_level_deflt' /etc/amavis/conf.d/20-debian_defaults | grep '= 3.0'" [ "$status" -eq 0 ] } # # opendkim # @test "checking opendkim: /etc/opendkim/KeyTable should contain 2 entries" { run docker exec mail /bin/sh -c "cat /etc/opendkim/KeyTable | wc -l" [ "$status" -eq 0 ] [ "$output" -eq 2 ] } @test "checking opendkim: /etc/opendkim/keys/ should contain 2 entries" { run docker exec mail /bin/sh -c "ls -l /etc/opendkim/keys/ | grep '^d' | wc -l" [ "$status" -eq 0 ] [ "$output" -eq 2 ] } @test "checking opendkim: generator creates keys, tables and TrustedHosts" { rm -rf "$(pwd)/test/config/empty" && mkdir -p "$(pwd)/test/config/empty" run docker run --rm \ -v "$(pwd)/test/config/empty/":/tmp/docker-mailserver/ \ -v "$(pwd)/test/config/postfix-accounts.cf":/tmp/docker-mailserver/postfix-accounts.cf \ -v "$(pwd)/test/config/postfix-virtual.cf":/tmp/docker-mailserver/postfix-virtual.cf \ `docker inspect --format '{{ .Config.Image }}' mail` /bin/sh -c 'generate-dkim-config | wc -l' [ "$status" -eq 0 ] [ "$output" -eq 5 ] # Check keys for localhost.localdomain run docker run --rm \ -v "$(pwd)/test/config/empty/opendkim":/etc/opendkim \ `docker inspect --format '{{ .Config.Image }}' mail` /bin/sh -c 'ls -1 /etc/opendkim/keys/localhost.localdomain/ | wc -l' [ "$status" -eq 0 ] [ "$output" -eq 2 ] # Check keys for otherdomain.tld run docker run --rm \ -v "$(pwd)/test/config/empty/opendkim":/etc/opendkim \ `docker inspect --format '{{ .Config.Image }}' mail` /bin/sh -c 'ls -1 /etc/opendkim/keys/otherdomain.tld | wc -l' [ "$status" -eq 0 ] [ "$output" -eq 2 ] # Check presence of tables and TrustedHosts run docker run --rm \ -v "$(pwd)/test/config/empty/opendkim":/etc/opendkim \ `docker inspect --format '{{ .Config.Image }}' mail` /bin/sh -c "ls -1 etc/opendkim | grep -E 'KeyTable|SigningTable|TrustedHosts|keys'|wc -l" [ "$status" -eq 0 ] [ "$output" -eq 4 ] } # # opendmarc # @test "checking opendkim: server fqdn should be added to /etc/opendmarc.conf as AuthservID" { run docker exec mail grep ^AuthservID /etc/opendmarc.conf [ "$status" -eq 0 ] [ "$output" = "AuthservID mail.my-domain.com" ] } @test "checking opendkim: server fqdn should be added to /etc/opendmarc.conf as TrustedAuthservIDs" { run docker exec mail grep ^TrustedAuthservID /etc/opendmarc.conf [ "$status" -eq 0 ] [ "$output" = "TrustedAuthservIDs mail.my-domain.com" ] } # # ssl # @test "checking ssl: generated default cert works correctly" { run docker exec mail /bin/sh -c "timeout 1 openssl s_client -connect 0.0.0.0:587 -starttls smtp -CApath /etc/ssl/certs/ | grep 'Verify return code: 0 (ok)'" [ "$status" -eq 0 ] } @test "checking ssl: lets-encrypt-x1-cross-signed.pem is installed" { run docker exec mail grep 'BEGIN CERTIFICATE' /etc/ssl/certs/lets-encrypt-x1-cross-signed.pem [ "$status" -eq 0 ] } @test "checking ssl: lets-encrypt-x2-cross-signed.pem is installed" { run docker exec mail grep 'BEGIN CERTIFICATE' /etc/ssl/certs/lets-encrypt-x2-cross-signed.pem [ "$status" -eq 0 ] } @test "checking ssl: letsencrypt configuration is correct" { run docker exec mail_pop3 /bin/sh -c 'grep -ir "/etc/letsencrypt/live/mail.my-domain.com/" /etc/postfix/main.cf | wc -l' [ "$status" -eq 0 ] [ "$output" -eq 2 ] run docker exec mail_pop3 /bin/sh -c 'grep -ir "/etc/letsencrypt/live/mail.my-domain.com/" /etc/dovecot/conf.d/10-ssl.conf | wc -l' [ "$status" -eq 0 ] [ "$output" -eq 2 ] } @test "checking ssl: letsencrypt combined.pem generated correctly" { run docker exec mail_pop3 ls -1 /etc/letsencrypt/live/mail.my-domain.com/combined.pem [ "$status" -eq 0 ] } @test "checking ssl: letsencrypt cert works correctly" { run docker exec mail_pop3 /bin/sh -c "timeout 1 openssl s_client -connect 0.0.0.0:587 -starttls smtp -CApath /etc/ssl/certs/ | grep 'Verify return code: 0 (ok)'" [ "$status" -eq 0 ] } # # fail2ban # @test "checking fail2ban: localhost is not banned because ignored" { run docker exec mail_fail2ban /bin/sh -c "fail2ban-client status postfix-sasl | grep 'IP list:.*127.0.0.1'" [ "$status" -eq 1 ] run docker exec mail_fail2ban /bin/sh -c "grep 'ignoreip = 127.0.0.1/8' /etc/fail2ban/jail.conf" [ "$status" -eq 0 ] } @test "checking fail2ban: fail2ban-jail.cf overrides" { FILTERS=(sshd postfix dovecot postfix-sasl) for FILTER in "${arr[@]}"; do run docker exec mail_fail2ban /bin/sh -c "fail2ban-client get $FILTER bantime" [ "$output" = 1234 ] run docker exec mail_fail2ban /bin/sh -c "fail2ban-client get $FILTER findtime" [ "$output" = 321 ] run docker exec mail_fail2ban /bin/sh -c "fail2ban-client get $FILTER maxretry" [ "$output" = 2 ] done } @test "checking fail2ban: ban ip on multiple failed login" { # Getting mail_fail2ban container IP MAIL_FAIL2BAN_IP=$(docker inspect --format '{{ .NetworkSettings.IPAddress }}' mail_fail2ban) # Create a container which will send wront authentications and should banned docker run --name fail-auth-mailer -e MAIL_FAIL2BAN_IP=$MAIL_FAIL2BAN_IP -v "$(pwd)/test":/tmp/docker-mailserver-test -d $(docker inspect --format '{{ .Config.Image }}' mail) tail -f /var/log/faillog docker exec fail-auth-mailer /bin/sh -c 'nc $MAIL_FAIL2BAN_IP 25 < /tmp/docker-mailserver-test/auth/smtp-auth-login-wrong.txt' docker exec fail-auth-mailer /bin/sh -c 'nc $MAIL_FAIL2BAN_IP 25 < /tmp/docker-mailserver-test/auth/smtp-auth-login-wrong.txt' sleep 5 # Checking that FAIL_AUTH_MAILER_IP is banned in mail_fail2ban FAIL_AUTH_MAILER_IP=$(docker inspect --format '{{ .NetworkSettings.IPAddress }}' fail-auth-mailer) run docker exec mail_fail2ban /bin/sh -c "fail2ban-client status postfix-sasl | grep '$FAIL_AUTH_MAILER_IP'" [ "$status" -eq 0 ] # Checking that FAIL_AUTH_MAILER_IP is banned by iptables run docker exec mail_fail2ban /bin/sh -c "iptables -L f2b-postfix-sasl -n | grep REJECT | grep '$FAIL_AUTH_MAILER_IP'" [ "$status" -eq 0 ] } @test "checking fail2ban: unban ip works" { FAIL_AUTH_MAILER_IP=$(docker inspect --format '{{ .NetworkSettings.IPAddress }}' fail-auth-mailer) docker exec mail_fail2ban fail2ban-client set postfix-sasl unbanip $FAIL_AUTH_MAILER_IP sleep 5 run docker exec mail_fail2ban /bin/sh -c "fail2ban-client status postfix-sasl | grep 'IP list:.*$FAIL_AUTH_MAILER_IP'" [ "$status" -eq 1 ] # Checking that FAIL_AUTH_MAILER_IP is unbanned by iptables run docker exec mail_fail2ban /bin/sh -c "iptables -L f2b-postfix-sasl -n | grep REJECT | grep '$FAIL_AUTH_MAILER_IP'" [ "$status" -eq 1 ] } # # system # @test "checking system: freshclam cron is enabled" { run docker exec mail crontab -l [ "$status" -eq 0 ] [ "$output" = "0 0,6,12,18 * * * /usr/bin/freshclam --quiet" ] } @test "checking system: /var/log/mail/mail.log is error free" { run docker exec mail grep 'non-null host address bits in' /var/log/mail/mail.log [ "$status" -eq 1 ] run docker exec mail grep ': error:' /var/log/mail/mail.log [ "$status" -eq 1 ] run docker exec mail_pop3 grep 'non-null host address bits in' /var/log/mail/mail.log [ "$status" -eq 1 ] run docker exec mail_pop3 grep ': error:' /var/log/mail/mail.log [ "$status" -eq 1 ] } @test "checking system: sets the server fqdn" { run docker exec mail hostname [ "$status" -eq 0 ] [ "$output" = "mail.my-domain.com" ] } @test "checking system: sets the server domain name in /etc/mailname" { run docker exec mail cat /etc/mailname [ "$status" -eq 0 ] [ "$output" = "my-domain.com" ] } # # sieve # @test "checking sieve: user1 should have received 1 email in folder INBOX.spam" { run docker exec mail /bin/sh -c "ls -A /var/mail/localhost.localdomain/user1/.INBOX.spam/new | wc -l" [ "$status" -eq 0 ] [ "$output" = 1 ] } @test "checking manage sieve: server is ready when ENABLE_MANAGESIEVE has been set" { run docker exec mail /bin/bash -c "nc -z 0.0.0.0 4190" [ "$status" -eq 0 ] } @test "checking manage sieve: disabled per default" { run docker exec mail_pop3 /bin/bash -c "nc -z 0.0.0.0 4190" [ "$status" -ne 0 ] }