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4023: enhancement: checks for anonmail access and ensure no wildcard collisions r=nextgens a=lhw ## What type of PR? Enhancement to resolve remaining comments from #3968 ## What does this PR do? - Simplifies the anonmail has_access checks (removed some duplicate checks for global admin - Fixes the alias generation check to avoid collisions with wildcard aliases Two Notes: The `Alias.resolve` would make domains that have catch alls with `%`@domain`` essentially non-functional for anonmail generation, even if allowed as it would return an alias for every single call. Aliases are matched by length with explicit matches first and then by length of match if got this right: ``` .order_by(cls.wildcard, sqlalchemy.func.char_length(cls.localpart).desc()) ``` Question is if that is what we want here. Second note. Right now the match with `Alias.resolve` requires the extra check against the alias db anyhow due to disabled aliases not being listed by `Alias.resolve` and causing a collision. An optional change would be to introduce a form of `Alias.resolve_any` or an optional parameter to `Alias.resolve(cls, localpart, domain_name, list_disabled=False)` e.g. ### Related issue(s) - #3968 ## 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. - [ ] In case of feature or enhancement: documentation updated accordingly - [ ] Unless it's docs or a minor change: add [changelog](https://mailu.io/master/contributors/workflow.html#changelog) entry file. Co-authored-by: Lennart Weller <lhw@ring0.de>
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 auto-configuration profiles for clients
- Advanced email features, aliases, domain aliases, custom routing, full-text search of email attachments
- Web access, multiple Webmails and administration interface
- User features, aliases, auto-reply, auto-forward, fetched accounts, managesieve
- Admin features, global admins, announcements, per-domain delegation, quotas
- Security, enforced TLS, DANE, MTA-STS, Letsencrypt!, outgoing DKIM, anti-virus scanner, Snuffleupagus, block malicious attachments
- Antispam, auto-learn, greylisting, DMARC and SPF, anti-spoofing
- 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.