* Add logwatch maillog.conf file to support /var/log/mail/
* Simpliied after reviewing logwatch doc
Co-authored-by: Georg Lauterbach <44545919+georglauterbach@users.noreply.github.com>
* docs: Add example for customizing IMAP folders (mailboxes)
* chore: Update `15-mailboxes.conf` to sync with upstream
This config has not been updated since 2016 (ignoring the Junk autosubscribe addition).
Synced to upstream equivalent at https://github.com/dovecot/core/blob/master/doc/example-config/conf.d/15-mailboxes.conf
Retains the `Archive` example definition from this PR and prior `auto = subscribe` additions.
---
Co-authored-by: Brennan Kinney <5098581+polarathene@users.noreply.github.com>
* fix: make sure the SASLAUTHD_LDAP_HOST/PROTO logic makes sense and use LDAP_SERVER_HOST as a fallback (#1983)
* chore(docs): document changes to LDAP/SASLAUTHD as of #1983
* fix!: apply default value modifications suggested in #1983https://github.com/docker-mailserver/docker-mailserver/issues/1983#issuecomment-844848224
* chore(test): Test SASLAUTHD_LDAP_SERVER with protocol and ..._SSL=0, as well as with default bind credentials
Note that there are currently no regression tests for this as there's only one setup_file, so that would require big changes to the testing methodology.
* refactor!: completely remove SASLAUTHD_LDAP_SSL and SASLAUTHD_LDAP_PROTO
Co-authored-by: Georg Lauterbach <44545919+aendeavor@users.noreply.github.com>
Co-authored-by: Frederic Werner <20406381+wernerfred@users.noreply.github.com>
* mail binary
* initial work
* make env vars available
* typo
* some fixes
* make script ugly, to satisfy linter..
* mailserver.env updated
* Version to welcome message added
* remove VERSION file references
* VERSION --> DMS_VERSION
* fetch remote version
* variable usage
* Quoting added
* edge test & docu
* dash removed
* subject changed
* re-add VERSION
* VERSION added
* new file: VERSION
* rewrite
* unnecessary additions from fail2ban PR removed
* UPDATE_CHECK_INTERVAL added
* syntax check & _log function
* comment added
* final commit
* Use dovecot's LDAP uris option instead of hosts (fixes#1510)
* Clean up variables & environment documentation for #1901
Co-authored-by: Frederic Werner <20406381+wernerfred@users.noreply.github.com>
Co-authored-by: Georg Lauterbach <44545919+aendeavor@users.noreply.github.com>
* splitting start-mailserver.sh
* refactoring part 2
* refactored setup-stack.sh
* stzarted adjusting target/bin/*.sh to use new usage format
* corrected lowercase-uppercase test error
* better handling of .bashrc variable export
* linting tests and fix for default assignements
* last stylistic changes and rebase
My `~` substitution and any usage of `/` within `start-mailserver.sh` has been replaced with the `|` delimiter instead as advised for matching style guide preference. Note there are other `sed` substitution delimiters still in use such as `+`.
Also added warning for empty `SSL_TYPE` ENV var that may result in an internal state config persist bug when changing `SSL_TYPE` depending on how a container is restarted.
* feat: Change Postfix smtpd_tls key and cert files to chain_files
Since Postfix 3.4, `smtpd_tls_cert_file` and `smtpd_tls_key_file` have been deprecated in favor of `smtpd_tls_chain_files` which supports a list of values where a single or sequence of file paths provide a private key followed by it's certificate chain.
* feat: Dual certificate support
`smtpd_tls_chain_files` allows for multiple key+cert bundles so that you can provide different key types, such as ECDSA and RSA.
To maintain compatibility with the current CERT/KEY ENV vars only a 2nd certificate is supported.
Since Dovecot 2.2.31 a related feature is also available, but it is limited to only providing one alternative certificate via separate cert and key settings.
---
This feature enables support for multiple certificates, eg for serving modern ECDSA certs with RSA as fallback.
* chore: Refactor variable names to meet style guide
Improved some comments too.
* chore: Have function definitions respect style guide
* chore: Minor edits to comments
* chore: Expand on comments for maintenance, alert of insecure config
When `SSL_TYPE` isn't properly setup, we're still offering SSL connections but not warning in logs about the insecurity of such, or why a misconfiguration may have occurred.
This commit more clearly communicates to the user that they should look into the issue before considering deploying to production.
The `TODO` comments communicate to any future maintainer to consider treating these improper configs as disabling TLS instead.
* fix: Use `snakeoil` cert
I mistakenly thought this was placeholder text, which broke some tests. This adds the two files in the correct order (private key followed by cert/chain), to fix that issue.
* fix: Disable alt cert for Dovecot if necessary
Certain scenarios may persist state of previously configured alt cert via ENV vars that are removed from a future run. If the config is not reset to original immutable state, this will correctly disable the config from using alt cert unintentionally.
* fix: Satisfy ShellCheck lint
By switching from string var to array / list expansion, this better stores the extracted result and applies it in a manner that ShellCheck linting approves, removing the need to disable the rule.
* feat: Support dual cert test
Few tweaks to the test script allows re-purposing it for covering dual cert support as well.
* chore: Rearranged cert and key lines
A little reorganization, mostly placing private key ahead of related cert lines.
* chore: Refactor `_set_certificate`
This should make the parameters a little less confusing.
Previously was 3 parameters, but the Postfix parameter (1st) may look like two variables if you don't pay attention to the surrounding quotes; while the Dovecot parameters (2nd + 3rd) would have an opposing order. There was also a variant where the `FULLKEYCHAIN` var was passed in three times.
Now it's two params, with the 2nd param as an optional one. If the 2nd param is provided, then the two params are in the order of private key then certificate, otherwise if only a single parameter it's a single PEM file with the full cert chain and private key bundled.
This avoids implying that Postfix and Dovecot might use different files.
* chore: Document current state of `SSL_TYPE` logic better
Inlined for the benefit of anyone else maintaining this section if I'm unable to address the concerns within my own time.
* docs: ENV vars
`TLS_LEVEL=old` isn't in the codebase anymore, not likely to be relevant to retain.
No point in documenting what is considered invalid / unsupported config value in the first place for `SSL_TYPE`.
`SSL_TYPE=manual` was missing documentation for both related file path ENV vars, they've been added along with their alt fallback variants.
* chore: Update Dovecot LMTP SSL test config
Not sure how relevant this is, the file isn't complete sync with the main dovecot `10-ssl.conf` config, adding the support just in case.
* chore: Rename `FULLKEYCHAIN` to avoid confusion
There doesn't appear to be a standardized name for this type of file bundle, and `keychain` may be misleading (fullkeychain often provides macOS keychain results on search engines).
Opting for a more explicit `KEY_WITH_FULLCHAIN` name instead.
* fix: Invalid var name
`_set_certificate` refactor commit accidentally changed a var name and committed that breaking the dual cert support (thanks tests!).
* test: Refactor `mail_ssl_manual.bats`
Proper test return values instead of `wc -l` based checking.
Tests with dual cert support active, tests that feature (to better detect failure case.
Third test case was unable to verify new self-signed certificate, added new certs signed with self-signed root CA.
Adjusted openssl `CApath` parameter to use `CAfile` instead as `letsencrypt` cert was replaced thus CA cert is missing from the system trust store.
* test: Properly check for files in `mail_ssl_manual.bats`
Fixes lint error.
Also realized I was accidentally asserting a file exists in the test environment, not within the container.
Resolved that and also added an additional test case to ensure the ENV var files are valid when passed in, in the event a change misconfigures them and that the issue is identified earlier.
* chore: Apply PR review feedback
Better format some strings that had mixed quotes when they weren't necessary.
Additionally DRYed up the config path for Postfix and Dovecot within the `_setup_ssl` method.
Co-authored-by: Georg Lauterbach <infrastructure@itbsd.com>
* let dkim generator accept selector as parameter
* test dkim-generator with selector parameter
* fix: correct name of domain argument in usage
* fix: adapt command to new syntax
* tests: use different quotes
* tests: use different quotes
* tests: remove domains that were never added
* style: change test name
* refactor: dkim setup
* style: remove trailing whitespace
* tests: remove test of removed dummy file
Co-authored-by: Frederic Werner <20406381+wernerfred@users.noreply.github.com>
* provide complete refactoring of openDKIM usage and tests
* fix leftover linting errors
* correct defualt key size and README usage
* provide independent order for arguments
* added `config` and adjusted usage information
* fixing shift in setup.sh
* adjust usage information to use new style and rename script
* use updated argument keysize instead of size
* rewrite to fix docker-mailserver#1808 (again)
* exiting script correctly now
* over-engineered usage information
the usage is now displayed like a man page and the paging mechanism (i.e. the display of the information) is borrowed from batcat
* fix typos
* Migrate PR#1730 from tomav/docker-mailserver repo to new
docker-mailserver/docker-mailserver repo
* Resolved review comments
* Moved counter increment to have consistency between fetchmail process
and fetchmail config files
* Added tests for new fetchmail option
Co-authored-by: Georg Lauterbach <44545919+aendeavor@users.noreply.github.com>
* first migration steps
* altered issue templates
* altered README
* removed .travis.yml
* adjusting registry & repository, Dockerfile and compose.env
* Close stale issues automatically
* Integrated CI with Github Actions (#3)
* feat: integrated ci with github actions
* fix: use secrets for docker org and update image
* docs: clarify why we use -t if no tty exists
* fix: correct remaining references to old repo
chore: prettier automatically updated markdown as well
* fix: hardcode docker org
* change testing image to just testing
* ci: add armv7 as a supported platform
* finished migration steps
* corrected linting in build-push action
* corrected linting in build-push action (2)
* minor preps for PR
* correcting push on pull request and minor details
* adjusted workflows to adhere closer to @wernerfred's diagram
* minor patches
* adjusting Dockerfile's installation of base packages
* adjusting schedule for stale issue action
* reverting license text
* improving CONTRIBUTING.md PR text
* Update CONTRIBUTING.md
* a bigger patch at the end
* moved all scripts into one directory under target/scripts/
* moved the quota-warning.sh script into target/scripts/ and removed empty directory /target/dovecot/scripts
* minor fixes here and there
* adjusted workflows for use a fully qualified name (i.e. docker.io/...)
* improved on the Dockerfile layer count
* corrected local tests - now they (actually) work (fine)!
* corrected start-mailserver.sh to make use of defaults consistently
* removed very old, deprecated variables (actually only one)
* various smaller improvements in the end
* last commit before merging #6
* rearranging variables to use alphabetic order
Co-authored-by: casperklein <casperklein@users.noreply.github.com>
Co-authored-by: Nick Pappas <radicand@users.noreply.github.com>
Co-authored-by: William Desportes <williamdes@wdes.fr>
* silence errorneous output when not generating reports
* remove incorrect variable assignment
* change error messages and logic when reports turned off
* changing warn -> inf
Co-authored-by: Charles Harris
Co-authored-by: Georg Lauterbach
* documentation and script updates trying to fix#1647
* preparations for refactoring target/bin/
* complete refactor for target/bin/
* changing script output slightly
* outsourcing functions in `bin-helper.sh`
* re-wrote linting to allow for proper shellcheck -x execution
* show explanation for shellcheck ignore
* adding some more information
* added option to use non-default network-interface (#1227)
* minor (stylistic) changes
* properly working with Bash arrays for CONTAINER_NETWORKS
* cleanup to trigger rebuild
* added CODE_OF_CONDUCT to trigger rebuild
Previously, only postfix-relaymap.cf and postfix-accounts.cf would be
used to populate the relayhost_map file.
Now, also use postfix-virtual.cf when present. To me, there is nothing
absurd about sending mail "From:" a virtual account (or more
specifically its domain) so it makes sense that when a $RELAY_HOST is
defined it should be used for virtual accounts as well.
check-for-changes.sh did not have a special case to handle lines in
postfix-relaymap.cf consisting of only a domain (indicating that said
domain should never be relayed). This case is handled by
start-mailserver.sh so when such a line existed, things would work well
until a config file update was detected by check-for-changes.sh. After
that, the generated relayhost_map file would be corrupted.
Fixed by factoring a 'populate_relayhost_map' function out of
start-mailserver.sh and into helper_functions.sh and reusing it in
check-for-changes.sh.
Note: There are certainly quite a few more pieces of code that could be
refactored in a similar fashion.
Note2: check-for-changes.sh would previously never update the
relayhost_map file when $ENABLE_LDAP was set to 1. I don't think this
was intended —there is after all no such condition in
start-mailserver.sh— and so this condition no longer applies.
If a change to one of the tracked files happened soon after (<1 second?)
a previously detected change, it could end up going undetected. In
particular, this could cause integration tests to fail (see next
commits).
Fixed by computing the new checksum file _before_ checking for changes.
Will extract certificates from acme.json as written by traefik for usage in dovecot and postfix.
Also watches acme.json for changes. For this to work the file has to be mounted/present at `/etc/letsencrypt/acme.json`
To prevent announcing software or version to malicious people or scripts, it is advised to hide such information.
This information is provided as part of the Lynis community project. It is related to Lynis control MAIL-8818 and should be considered as-is and without guarantees.
https://cisofy.com/lynis/controls/MAIL-8818/
[Postfix docs](http://www.postfix.org/postconf.5.html#tls_ssl_options):
> Disable SSL compression even if supported by the OpenSSL library. Compression is CPU-intensive, and compression before encryption does not always improve security.
[Postfix mailing list discussion](http://postfix.1071664.n5.nabble.com/patch-mitigate-CRIME-attack-td57978.html):
> The CRIME attack does not apply to SMTP, because unlike SMTP, there is no javascript in SMTP clients that makes them send thousands of email messages with chosen plaintext compressed together in the same packet with SASL credentials or other sensitive data.
> The auditor completely failed to take the context into account.
[Mailing list discussion of potential compression CRIME-like attack](https://lists.cert.at/pipermail/ach/2014-December/001660.html)
> keeping compression disabled is a good idea.
If you need a good test score, PCI compliance will likely flag compression despite not having any known risk with non-HTTP TLS.
This will allow to forward safely any email from any host, no matter how strict their SPF policy is, by setting `SRS_SENDER_CLASSES=envelope_sender,header_sender`.
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