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Added greylisting using postgrey (#495)

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* Added greylisting using postgrey
* Updated the documentation
This commit is contained in:
Sven Kauber 2017-02-06 09:21:18 +00:00 • committed by Thomas VIAL
parent d40ae81d09
commit c7e4206466
8 changed files with 291 additions and 1 deletions
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12
test/email-templates/postgrey.txt Normal file
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@ -0,0 +1,12 @@
HELO mail.external.tld
MAIL FROM: user@external.tld
RCPT TO: user1@localhost.localdomain
DATA
From: Docker Mail Server <dockermailserver@external.tld>
To: Existing Local User <user1@localhost.localdomain>
Date: Sat, 22 May 2010 07:43:25 -0400
Subject: Postgrey Test Message
This is a test mail.
.
QUIT

53
test/tests.bats
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@ -78,6 +78,59 @@ load 'test_helper/bats-assert/load'
assert_success
}
#
# postgrey
#
@test "checking process: postgrey (disabled in default configuration)" {
run docker exec mail /bin/bash -c "ps aux --forest | grep -v grep | grep '/usr/sbin/postgrey'"
assert_failure
}
@test "checking postgrey: /etc/postfix/main.cf correctly edited" {
run docker exec mail_with_postgrey /bin/bash -c "grep 'bl.spamcop.net, check_policy_service inet:127.0.0.1:10023' /etc/postfix/main.cf | wc -l"
assert_success
assert_output 1
}
@test "checking postgrey: /etc/default/postgrey correctly edited and has the default values" {
run docker exec mail_with_postgrey /bin/bash -c "grep '^POSTGREY_OPTS=\"--inet=10023 --delay=15 --max-age=35\"$' /etc/default/postgrey | wc -l"
assert_success
assert_output 1
run docker exec mail_with_postgrey /bin/bash -c "grep '^POSTGREY_TEXT=\"Delayed by postgrey\"$' /etc/default/postgrey | wc -l"
assert_success
assert_output 1
}
@test "checking process: postgrey (postgrey server enabled)" {
run docker exec mail_with_postgrey /bin/bash -c "ps aux --forest | grep -v grep | grep '/usr/sbin/postgrey'"
assert_success
}
@test "checking postgrey: there should be a log entry about a new greylisted e-mail user@external.tld in /var/log/mail/mail.log" {
#editing the postfix config in order to ensure that postgrey handles the test e-mail. The other spam checks at smtpd_recipient_restrictionswould interfere with it.
run docker exec mail_with_postgrey /bin/sh -c "sed -ie 's/permit_sasl_authenticated.*reject_unauth_destination,$//g' /etc/postfix/main.cf"
run docker exec mail_with_postgrey /bin/sh -c "sed -ie 's/reject_unauth_pipelining.*reject_unknown_recipient_domain,$//g' /etc/postfix/main.cf"
run docker exec mail_with_postgrey /bin/sh -c "sed -ie 's/reject_rbl_client.*inet:127\.0\.0\.1:10023$//g' /etc/postfix/main.cf"
run docker exec mail_with_postgrey /bin/sh -c "sed -ie 's/smtpd_recipient_restrictions = /smtpd_recipient_restrictions = check_policy_service inet:127.0.0.1:10023/g' /etc/postfix/main.cf"
run docker exec mail_with_postgrey /bin/sh -c "/etc/init.d/postfix reload"
run docker exec mail_with_postgrey /bin/sh -c "nc 0.0.0.0 25 < /tmp/docker-mailserver-test/email-templates/postgrey.txt"
sleep 5 #ensure that the information has been written into the log
run docker exec mail_with_postgrey /bin/bash -c "grep -i 'action=greylist.*user@external\.tld' /var/log/mail/mail.log | wc -l"
assert_success
assert_output 1
}
@test "checking postgrey: there should be a log entry about the retried and passed e-mail user@external.tld in /var/log/mail/mail.log" {
sleep 20 #wait 20 seconds so that postgrey would accept the message
run docker exec mail_with_postgrey /bin/sh -c "nc 0.0.0.0 25 < /tmp/docker-mailserver-test/email-templates/postgrey.txt"
sleep 8
run docker exec mail_with_postgrey /bin/sh -c "grep -i 'action=pass, reason=triplet found.*user@external\.tld' /var/log/mail/mail.log | wc -l"
assert_success
assert_output 1
}
#
# imap
#