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Merge branch 'master' into ldap
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10
CHANGELOG.md
10
CHANGELOG.md
@ -7,15 +7,14 @@ Under Development
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System:
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* TLS settings have been upgraded following Mozilla's recommendations for servers. TLS1.2 and 1.3 are now the only supported protocols for web, IMAP, and SMTP (submission).
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WebMail:
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* Set the default Roundcube skin to the new "Elastic" theme.
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* Fixed an issue starting services when Mail-in-a-Box isn't on the root filesystem.
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* Changed some performance options affecting Roundcube and Nextcloud.
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Software updates:
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* Upgraded Nextcloud from 15.0.8 to 17.0.1 (with Contacts from 3.1.1 to 3.1.6 and Calendar from 1.6.5 to 1.7.1)
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* Upgraded Nextcloud from 15.0.8 to 17.0.2 (with Contacts from 3.1.1 to 3.1.6 and Calendar from 1.6.5 to 1.7.1)
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* Upgraded Z-Push to 2.5.1.
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* Upgraded Roundcube from 1.3.10 to 1.4.1.
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* Upgraded Roundcube from 1.3.10 to 1.4.2 and changed the default skin (theme) to Elastic.
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Control panel:
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@ -25,6 +24,7 @@ Control panel:
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Mail:
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* Fetching of updated whitelist for greylisting was fetching each day instead of every month.
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* OpenDKIM signing has been changed to 'relaxed' mode so that some old mail lists that forward mail can do so.
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DNS:
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@ -41,7 +41,6 @@ The services all follow these rules:
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* TLS certificates are generated with 2048-bit RSA keys and SHA-256 fingerprints. The box provides a self-signed certificate by default. The [setup guide](https://mailinabox.email/guide.html) explains how to verify the certificate fingerprint on first login. Users are encouraged to replace the certificate with a proper CA-signed one. ([source](setup/ssl.sh))
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* Only TLSv1.2+ are offered (the older SSL protocols are not offered).
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* We track the [Mozilla Intermediate Ciphers Recommendation](https://wiki.mozilla.org/Security/Server_Side_TLS), balancing security with supporting a wide range of mail clients. Diffie-Hellman ciphers use a 2048-bit key for forward secrecy. For more details, see the [output of SSLyze for these ports](tests/tls_results.txt).
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* SMTP port 25 (inbound) follows similar rules. Outbound SMTP (i.e. the server is the client) uses more relaxed settings.
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Additionally:
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@ -95,7 +94,7 @@ Domain policy records allow recipient MTAs to detect when the _domain_ part of o
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### User Policy
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While domain policy records prevent other servers from sending mail with a "From:" header that matches a domain hosted on the box (see above), those policy records do not guarnatee that the user portion of the sender email address matches the actual sender. In enterprise environments where the box may host the mail of untrusted users, it is important to guard against users impersonating other users.
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While domain policy records prevent other servers from sending mail with a "From:" header that matches a domain hosted on the box (see above), those policy records do not guarantee that the user portion of the sender email address matches the actual sender. In enterprise environments where the box may host the mail of untrusted users, it is important to guard against users impersonating other users.
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The box restricts the envelope sender address (also called the return path or MAIL FROM address --- this is different from the "From:" header) that users may put into outbound mail. The envelope sender address must be either their own email address (their SMTP login username) or any alias that they are listed as a permitted sender of. (There is currently no restriction on the contents of the "From:" header.)
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@ -82,7 +82,7 @@ tools/editconf.py /etc/postfix/main.cf \
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# OpenDKIM milter only. See dkim.sh.
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# * Even though we dont allow auth over non-TLS connections (smtpd_tls_auth_only below, and without auth the client cant
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# send outbound mail), don't allow non-TLS mail submission on this port anyway to prevent accidental misconfiguration.
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# By putting this setting here we leave opportunistic TLS on incoming mail at default cipher settings (any cipher is better than none).
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# Setting smtpd_tls_security_level=encrypt also triggers the use of the 'mandatory' settings below.
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# * Give it a different name in syslog to distinguish it from the port 25 smtpd server.
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# * Add a new cleanup service specific to the submission service ('authclean')
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# that filters out privacy-sensitive headers on mail being sent out by
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@ -118,25 +118,34 @@ cp conf/postfix_outgoing_mail_header_filters /etc/postfix/outgoing_mail_header_f
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sed -i "s/PRIMARY_HOSTNAME/$PRIMARY_HOSTNAME/" /etc/postfix/outgoing_mail_header_filters
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sed -i "s/PUBLIC_IP/$PUBLIC_IP/" /etc/postfix/outgoing_mail_header_filters
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# Enable TLS on these and all other connections (i.e. ports 25 *and* 587) and
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# require TLS before a user is allowed to authenticate. This also makes
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# opportunistic TLS available on *incoming* mail.
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# Set stronger DH parameters, which via openssl tend to default to 1024 bits.
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# Use Mozilla's "Intermediate" TLS recommendations from https://ssl-config.mozilla.org/#server=postfix&server-version=3.3.0&config=intermediate&openssl-version=1.1.1
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# (but use and override the "high" cipher list so we don't conflict with the
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# more permissive settings for outgoing mail).
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# Enable TLS on incoming connections. It is not required on port 25, allowing for opportunistic
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# encryption. On port 587 it is mandatory (see above). Shared and non-shared settings are
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# given here. Shared settings include:
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# * Require TLS before a user is allowed to authenticate.
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# * Set the path to the server TLS certificate and 2048-bit DH parameters for old DH ciphers.
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# For port 25 only:
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# * Disable extremely old versions of TLS and extremely unsafe ciphers, but some mail servers out in
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# the world are very far behind and if we disable too much, they may not be able to use TLS and
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# won't fall back to cleartext. So we don't disable too much. smtpd_tls_exclude_ciphers applies to
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# both port 25 and port 587, but because we override the cipher list for both, it probably isn't used.
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# Use Mozilla's "Old" recommendations at https://ssl-config.mozilla.org/#server=postfix&server-version=3.3.0&config=old&openssl-version=1.1.1
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# For port 587 (via the 'mandatory' settings):
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# * Use Mozilla's "Intermediate" TLS recommendations from https://ssl-config.mozilla.org/#server=postfix&server-version=3.3.0&config=intermediate&openssl-version=1.1.1
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# using and overriding the "high" cipher list so we don't conflict with the more permissive settings for port 25.
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tools/editconf.py /etc/postfix/main.cf \
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smtpd_tls_security_level=may\
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smtpd_tls_auth_only=yes \
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smtpd_tls_cert_file=$STORAGE_ROOT/ssl/ssl_certificate.pem \
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smtpd_tls_key_file=$STORAGE_ROOT/ssl/ssl_private_key.pem \
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smtpd_tls_dh1024_param_file=$STORAGE_ROOT/ssl/dh2048.pem \
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smtpd_tls_protocols="!SSLv2,!SSLv3,!TLSv1,!TLSv1.1" \
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smtpd_tls_protocols="!SSLv2,!SSLv3" \
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smtpd_tls_ciphers=medium \
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tls_medium_cipherlist=ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384:DHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES256-SHA:ECDHE-RSA-AES256-SHA:DHE-RSA-AES128-SHA256:DHE-RSA-AES256-SHA256:AES128-GCM-SHA256:AES256-GCM-SHA384:AES128-SHA256:AES256-SHA256:AES128-SHA:AES256-SHA:DES-CBC3-SHA \
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smtpd_tls_exclude_ciphers=aNULL,RC4 \
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smtpd_tls_mandatory_protocols="!SSLv2,!SSLv3,!TLSv1,!TLSv1.1" \
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smtpd_tls_ciphers=high \
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smtpd_tls_mandatory_ciphers=high \
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smtpd_tls_exclude_ciphers= \
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tls_high_cipherlist=ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384 \
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smtpd_tls_mandatory_exclude_ciphers=aNULL,DES,3DES,MD5,DES+MD5,RC4 \
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tls_preempt_cipherlist=no \
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smtpd_tls_received_header=yes
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@ -162,7 +171,7 @@ tools/editconf.py /etc/postfix/main.cf \
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# Since we'd rather have poor encryption than none at all, we use Mozilla's
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# "Old" recommendations at https://ssl-config.mozilla.org/#server=postfix&server-version=3.3.0&config=old&openssl-version=1.1.1
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# for opportunistic encryption but "Intermediate" recommendations when DANE
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# is used (see next and above).
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# is used (see next and above). The cipher lists are set above.
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# DANE takes this a step further:
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# Postfix queries DNS for the TLSA record on the destination MX host. If no TLSA records are found,
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@ -178,8 +187,7 @@ tools/editconf.py /etc/postfix/main.cf \
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tools/editconf.py /etc/postfix/main.cf \
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smtp_tls_protocols=\!SSLv2,\!SSLv3 \
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smtp_tls_ciphers=medium \
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tls_medium_cipherlist=ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384:DHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES256-SHA:ECDHE-RSA-AES256-SHA:DHE-RSA-AES128-SHA256:DHE-RSA-AES256-SHA256:AES128-GCM-SHA256:AES256-GCM-SHA384:AES128-SHA256:AES256-SHA256:AES128-SHA:AES256-SHA:DES-CBC3-SHA \
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smtp_tls_exclude_ciphers= \
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smtp_tls_exclude_ciphers=aNULL,RC4 \
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smtp_tls_security_level=dane \
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smtp_dns_support_level=dnssec \
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smtp_tls_mandatory_protocols="!SSLv2,!SSLv3,!TLSv1,!TLSv1.1" \
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@ -91,8 +91,8 @@ InstallNextcloud() {
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}
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# Nextcloud Version to install. Checks are done down below to step through intermediate versions.
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nextcloud_ver=17.0.1
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nextcloud_hash=81e47f2288377927346a4b4cbbb2ecf1b6f4a0e1
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nextcloud_ver=17.0.2
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nextcloud_hash=8095fb46e9e0c536163708aee3d17fab8b498ad6
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# Current Nextcloud Version, #1623
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# Checking /usr/local/lib/owncloud/version.php shows version of the Nextcloud application, not the DB
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@ -29,9 +29,9 @@ apt_install \
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# Install Roundcube from source if it is not already present or if it is out of date.
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# Combine the Roundcube version number with the commit hash of plugins to track
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# whether we have the latest version of everything.
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VERSION=1.4.1
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HASH=f4ecc63185b8f7b4ce5bccdc9fc689571e82c489
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PERSISTENT_LOGIN_VERSION=dc5ca3d3f4415cc41edb2fde533c8a8628a94c76
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VERSION=1.4.2
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HASH=d53fcd7f1109a63364d5d4a43f879c6f47d34a89
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PERSISTENT_LOGIN_VERSION=6b3fc450cae23ccb2f393d0ef67aa319e877e435
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HTML5_NOTIFIER_VERSION=4b370e3cd60dabd2f428a26f45b677ad1b7118d5
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CARDDAV_VERSION=3.0.3
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CARDDAV_HASH=d1e3b0d851ffa2c6bd42bf0c04f70d0e1d0d78f8
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