Commit graph

14 commits

Author SHA1 Message Date
Mechiel Lukkien
936a0d5afe
bugfix: when dkim-signing submitted messages, use the domain from the "message from header" instead of "smtp mail from"
dmarc verifiers will only accept a dkim signature if the domain the message From
header matches the domain of the signature (i.e. it is "aligned").

i hadn't run into this before and when testing because thunderbird sets the
"smtp mail from" to the same address as a custom "message from" header. but
other mail clients don't have to do that.

should fix issue #22
2023-03-30 10:38:36 +02:00
Mechiel Lukkien
b571dd4b28
implement a catchall address for a domain
by specifying a "destination" in an account that is just "@" followed by the
domain, e.g. "@example.org". messages are only delivered to the catchall
address when no regular destination matches (taking the per-domain
catchall-separator and case-sensisitivity into account).

for issue #18
2023-03-29 21:11:43 +02:00
Mechiel Lukkien
9b57c69c1c
implement limits on outgoing messages for an account
by default 1000 messages per day, and to max 200 first-time receivers.
i don't think a person would reach those limits. a compromised account abused
by spammers could easily reach that limit. this prevents further damage.

the error message you will get is quite clear, pointing to the configuration
parameter that should be changed.
2023-03-29 09:36:06 +02:00
Mechiel Lukkien
317dc78397
add pedantic mode (used by localserve) that refuses some behaviour that is invalid according to specifications and that we normally accept for compatibility 2023-03-12 15:16:01 +01:00
Mechiel Lukkien
2c07645ab4
deprecate having only localparts in an Account's Destinations, it should always be a full email address
current behaviour isn't intuitive. it's not great to have to attempt parsing
the strings as both localpart and email address. so we deprecate the
localpart-only behaviour. when we load the config file, and it has
localpart-only Destinations keys, we'll change them to full addresses in
memory. when an admin causes a write of domains.conf, it'll automatically be
fixed. we log an error with a deprecated notice for each localpart-only
destinations key.

sometime in the future, we can remove the old localpart-only destination
support. will be in the release notes then.

also start keeping track of update notes that need to make it in the release
notes of the next release.

for issue #18
2023-03-09 22:13:56 +01:00
Mechiel Lukkien
8b0706e02d
for WebRedirect, don't "match" when the destination URL has the same scheme,host,path, for doing http -> https redirects without loops
you can already get most http to https redirects through DontRedirectPlainHTTP
in WebHandler, but that needs handlers for all paths.

now you can just set up a redirect for a domain and all its path to baseurl
https://domain (leaving other webdirect fields empty). when the request comes
in with plain http, the redirect to https is done. that next request will also
evaluate the same redirect rule. but it will not cause a match because it would
redirect to the same scheme,host,path. so next webhandlers get a chance to
serve.

also clarify in webhandlers docs that also account & admin built-in handlers
run first.

related to issue #16
2023-03-08 23:29:44 +01:00
Mechiel Lukkien
6abee87aa3
improve webserver, add domain redirects (aliases), add tests and admin page ui to manage the config
- make builtin http handlers serve on specific domains, such as for mta-sts, so
  e.g. /.well-known/mta-sts.txt isn't served on all domains.
- add logging of a few more fields in access logging.
- small tweaks/bug fixes in webserver request handling.
- add config option for redirecting entire domains to another (common enough).
- split httpserver metric into two: one for duration until writing header (i.e.
  performance of server), another for duration until full response is sent to
  client (i.e. performance as perceived by users).
- add admin ui, a new page for managing the configs. after making changes
  and hitting "save", the changes take effect immediately. the page itself
  doesn't look very well-designed (many input fields, makes it look messy). i
  have an idea to improve it (explained in admin.html as todo) by making the
  layout look just like the config file. not urgent though.

i've already changed my websites/webapps over.

the idea of adding a webserver is to take away a (the) reason for folks to want
to complicate their mox setup by running an other webserver on the same machine.
i think the current webserver implementation can already serve most common use
cases. with a few more tweaks (feedback needed!) we should be able to get to 95%
of the use cases. the reverse proxy can take care of the remaining 5%.
nevertheless, a next step is still to change the quickstart to make it easier
for folks to run with an existing webserver, with existing tls certs/keys.
that's how this relates to issue #5.
2023-03-02 18:15:54 +01:00
Mechiel Lukkien
d3590caa2e
do not require a user "mox" to be present for tests
uid 1000 doesn't actually have to be present (except for the special imaptest),
but this prevents looking up the user named mox.
2023-02-27 14:54:16 +01:00
Mechiel Lukkien
92e018e463
change mox to start as root, bind to network sockets, then drop to regular unprivileged mox user
makes it easier to run on bsd's, where you cannot (easily?) let non-root users
bind to ports <1024. starting as root also paves the way for future improvements
with privilege separation.

unfortunately, this requires changes to how you start mox. though mox will help
by automatically fix up dir/file permissions/ownership.

if you start mox from the systemd unit file, you should update it so it starts
as root and adds a few additional capabilities:

        # first update the mox binary, then, as root:
        ./mox config printservice >mox.service
        systemctl daemon-reload
        systemctl restart mox
        journalctl -f -u mox &
        # you should see mox start up, with messages about fixing permissions on dirs/files.

if you used the recommended config/ and data/ directory, in a directory just for
mox, and with the mox user called "mox", this should be enough.

if you don't want mox to modify dir/file permissions, set "NoFixPermissions:
true" in mox.conf.

if you named the mox user something else than mox, e.g. "_mox", add "User: _mox"
to mox.conf.

if you created a shared service user as originally suggested, you may want to
get rid of that as it is no longer useful and may get in the way. e.g. if you
had /home/service/mox with a "service" user, that service user can no longer
access any files: only mox and root can.

this also adds scripts for building mox docker images for alpine-supported
platforms.

the "restart" subcommand has been removed. it wasn't all that useful and got in
the way.

and another change: when adding a domain while mtasts isn't enabled, don't add
the per-domain mtasts config, as it would cause failure to add the domain.

based on report from setting up mox on openbsd from mteege.
and based on issue #3. thanks for the feedback!
2023-02-27 12:19:55 +01:00
Mechiel Lukkien
cafccefad1
fix integration test, the delay for new senders was causing our db open to fail 2023-02-17 19:30:30 +01:00
Mechiel Lukkien
5336032088
add funtionality to import zip/tgz with maildirs/mboxes to account page
so users can easily take their email out of somewhere else, and import it into mox.

this goes a little way to give feedback as the import progresses: upload
progress is shown (surprisingly, browsers aren't doing this...), imported
mailboxes/messages are counted (batched) and import issues/warnings are
displayed, all sent over an SSE connection. an import token is stored in
sessionstorage. if you reload the page (e.g. after a connection error), the
browser will reconnect to the running import and show its progress again. and
you can just abort the import before it is finished and committed, and nothing
will have changed.

this also imports flags/keywords from mbox files.
2023-02-16 09:57:27 +01:00
Mechiel Lukkien
49dd5b7ba9
work around missing timezone in timestamps in tls reports from microsoft 2023-02-05 10:55:34 +01:00
Mechiel Lukkien
7076dd199b
rename filename that is invalid for the go module proxy
not found: create zip: testdata/importtest.maildir/cur/1642966915.1.mox:2,: malformed file path "testdata/importtest.maildir/cur/1642966915.1.mox:2,": invalid char ':'
2023-01-30 14:38:55 +01:00
Mechiel Lukkien
cb229cb6cf
mox! 2023-01-30 14:27:06 +01:00