c2d85ecc32
2325: postfix: wrap IPv6 CIDRs in square brackets for RELAYNETS r=mergify[bot] a=pommi ## What type of PR? bug-fix ## What does this PR do? This PR wraps IPv6 CIDRs in the `RELAYNETS` environment variable in square brackets for the postfix configuration. The `RELAYNETS` environment variable is used for configuring both postfix `mynetworks` and rspamd `local_networks`. Postfix requires IPv6 addresses to be wrapped in square brackets (eg. `[2001:db8::]/64`). When an IPv6 address is not wrapped in square brackets in the postfix configuration for `mynetworks` it results in this error while processing an incoming email from an IPv6 sender: ``` postfix/smtpd[340]: warning: 2001:db8::/64 is unavailable. unsupported dictionary type: 2001 postfix/smtpd[340]: warning: smtpd_client_event_limit_exceptions: 2001:db8::/64: table lookup problem ``` The sender sees an error and the incoming email is refused: ``` 451 4.3.0 <unknown[2001:xxx:xxx:xxx:xxx:xxx:xxx:xxx]>: Temporary lookup failure ``` I tried to work around this issue by wrapping the IPv6 CIDR in square brackets in the `RELAYNETS` environment variable, but it segfaults rspamd, because it can't deal with this non-standard IPv6 notation used by postfix: ``` kernel: [4305632.603704] rspamd[1954299]: segfault at 0 ip 00007fb848983871 sp 00007ffe02cc6d1 8 error 4 in ld-musl-x86_64.so.1[7fb848948000+48000] ``` ### Related issue(s) - #2293 - #2272 ## Prerequisites Before we can consider review and merge, please make sure the following list is done and checked. If an entry in not applicable, you can check it or remove it from the list. **No changelog or documentation necessary for this minor change.** Co-authored-by: Pim van den Berg <pim@nethuis.nl> |
3 years ago | |
|---|---|---|
| .github | 3 years ago | |
| core | 3 years ago | |
| design | 5 years ago | |
| docs | 3 years ago | |
| optional | 3 years ago | |
| setup | 3 years ago | |
| tests | 3 years ago | |
| towncrier | 3 years ago | |
| webmails | 3 years ago | |
| .gitignore | 5 years ago | |
| .mergify.yml | 3 years ago | |
| AUTHORS.md | 3 years ago | |
| CHANGELOG.md | 3 years ago | |
| CODE_OF_CONDUCT.md | 7 years ago | |
| CONTRIBUTING.md | 5 years ago | |
| ISSUE_TEMPLATE.md | 4 years ago | |
| LICENSE.md | 8 years ago | |
| PULL_REQUEST_TEMPLATE.md | 3 years ago | |
| README.md | 3 years ago | |
| RELEASE_TEMPLATE.md | 3 years ago | |
| bors.toml | 3 years ago | |
| pyproject.toml | 5 years ago | |
README.md
Mailu is a simple yet full-featured mail server as a set of Docker images. It is free software (both as in free beer and as in free speech), open to suggestions and external contributions. The project aims at providing people with an easily setup, easily maintained and full-featured mail server while not shipping proprietary software nor unrelated features often found in popular groupware.
Most of the documentation is available on our Website, you can also try our demo server before setting up your own, and come talk to us on Matrix.
Features
Main features include:
- Standard email server, IMAP and IMAP+, SMTP and Submission with autoconfiguration profiles for clients
- Advanced email features, aliases, domain aliases, custom routing
- Web access, multiple Webmails and administration interface
- User features, aliases, auto-reply, auto-forward, fetched accounts
- Admin features, global admins, announcements, per-domain delegation, quotas
- Security, enforced TLS, DANE, MTA-STS, Letsencrypt!, outgoing DKIM, anti-virus scanner
- Antispam, auto-learn, greylisting, DMARC and SPF
- Freedom, all FOSS components, no tracker included
Contributing
Mailu is free software, open to suggestions and contributions. All components are free software and compatible with the MIT license. All specific configuration files, Dockerfiles and code are placed under the MIT license.