At some places, the string that DOMAIN_REGISTRATION is got used like a boolean
(an easy misassumption to make while in python and dealing with the config
dict), making `DOMAIN_REGISTRATION=False` act as a truthy value. To stop such
future problems from happening, coerce environment config strings to real
bools.
closes#830
Since it’s common for wildcard~ish systems to prefer concrete objects over
wildcards, and aliases can be broad-wildcards (think catchall, %@xxx.tld), it
may be more intuitive for users that user-names rank higher than aliases. This
makes it impossible for user-names to be unreachable, since they can be
completely overridden by a catchall otherwise.
This changes default behavior, and is not configurable.
closes#815
As discussed with hoellen on matrix, since postfix indeed supports including
the recipient delimiter character in a verbatim alias, we should support so too
— and handle its precedence correctly. The clearer and simpler formulation of
the precedence-clauses are credit to @hoellen. Thanks!
This fixes delivery to an alias minus recipient delimiter in cases where a
wildcard alias would also match. For example,
* foo@xxx.tld
* %@xxx.tld
Sending to foo+spam@xxx.tld would get eaten by the catchall before this fix.
Now, the order of alias resolution is made clearer.
closes#813
CVE-2017-18342
Vulnerable versions: < 4.2b1
Patched version: 4.2b1
In PyYAML before 4.1, the yaml.load() API could execute arbitrary code. In other words, yaml.safe_load is not used.
Since postfix now asks us for the complete email over podop, which
includes the recipient-delimiter-and-what-follows not stripped, we need
to attempt to find both the verbatim localpart, as well as the localpart
stripped of the delimited part ….
Fixes#755
hoellen