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webadmin: make remaining domain settings configurable via admin web interface

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for dmarc reporting address, tls reporting address, mtasts policy, dkim keys/selectors.

should make it easier for webadmin-using admins to discover these settings.

the webadmin interface is now on par with functionality you would set through
the configuration file, let's keep it that way.
This commit is contained in:
Mechiel Lukkien
2024-04-19 10:23:53 +02:00
parent a69887bfab
commit e702f45d32
11 changed files with 1836 additions and 100 deletions
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54
config/doc.go
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@ -752,7 +752,7 @@ See https://pkg.go.dev/github.com/mjl-/sconf for details.
Selectors:
x:
# sha256 (default) or (older, not recommended) sha1 (optional)
# sha256 (default) or (older, not recommended) sha1. (optional)
Hash:
# (optional)
@ -800,8 +800,15 @@ See https://pkg.go.dev/github.com/mjl-/sconf for details.
# non-internationalized. Recommended value: dmarc-reports.
Localpart:
# Alternative domain for report recipient address. Can be used to receive reports
# for other domains. Unicode name. (optional)
# Alternative domain for reporting address, for incoming reports. Typically empty,
# causing the domain wherein this config exists to be used. Can be used to receive
# reports for domains that aren't fully hosted on this server. Configure such a
# domain as a hosted domain without making all the DNS changes, and configure this
# field with a domain that is fully hosted on this server, so the localpart and
# the domain of this field form a reporting address. Then only update the DMARC
# DNS record for the not fully hosted domain, ensuring the reporting address is
# specified in its "rua" field as shown in the suggested DNS settings. Unicode
# name. (optional)
Domain:
# Account to deliver to.
@ -810,17 +817,35 @@ See https://pkg.go.dev/github.com/mjl-/sconf for details.
# Mailbox to deliver to, e.g. DMARC.
Mailbox:
# With MTA-STS a domain publishes, in DNS, presence of a policy for
# using/requiring TLS for SMTP connections. The policy is served over HTTPS.
# (optional)
# MTA-STS is a mechanism that allows publishing a policy with requirements for
# WebPKI-verified SMTP STARTTLS connections for email delivered to a domain.
# Existence of a policy is announced in a DNS TXT record (often
# unprotected/unverified, MTA-STS's weak spot). If a policy exists, it is fetched
# with a WebPKI-verified HTTPS request. The policy can indicate that
# WebPKI-verified SMTP STARTTLS is required, and which MX hosts (optionally with a
# wildcard pattern) are allowd. MX hosts to deliver to are still taken from DNS
# (again, not necessarily protected/verified), but messages will only be delivered
# to domains matching the MX hosts from the published policy. Mail servers look up
# the MTA-STS policy when first delivering to a domain, then keep a cached copy,
# periodically checking the DNS record if a new policy is available, and fetching
# and caching it if so. To update a policy, first serve a new policy with an
# updated policy ID, then update the DNS record (not the other way around). To
# remove an enforced policy, publish an updated policy with mode "none" for a long
# enough period so all cached policies have been refreshed (taking DNS TTL and
# policy max age into account), then remove the policy from DNS, wait for TTL to
# expire, and stop serving the policy. (optional)
MTASTS:
# Policies are versioned. The version must be specified in the DNS record. If you
# change a policy, first change it in mox, then update the DNS record.
# change a policy, first change it here to update the served policy, then update
# the DNS record with the updated policy ID.
PolicyID:
# testing, enforce or none. If set to enforce, a remote SMTP server will not
# deliver email to us if it cannot make a TLS connection.
# If set to "enforce", a remote SMTP server will not deliver email to us if it
# cannot make a WebPKI-verified SMTP STARTTLS connection. In mode "testing",
# deliveries can be done without verified TLS, but errors will be reported through
# TLS reporting. In mode "none", verified TLS is not required, used for phasing
# out an MTA-STS policy.
Mode:
# How long a remote mail server is allowed to cache a policy. Typically 1 or
@ -843,8 +868,15 @@ See https://pkg.go.dev/github.com/mjl-/sconf for details.
# tls-reports.
Localpart:
# Alternative domain for report recipient address. Can be used to receive reports
# for other domains. Unicode name. (optional)
# Alternative domain for reporting address, for incoming reports. Typically empty,
# causing the domain wherein this config exists to be used. Can be used to receive
# reports for domains that aren't fully hosted on this server. Configure such a
# domain as a hosted domain without making all the DNS changes, and configure this
# field with a domain that is fully hosted on this server, so the localpart and
# the domain of this field form a reporting address. Then only update the TLSRPT
# DNS record for the not fully hosted domain, ensuring the reporting address is
# specified in its "rua" field as shown in the suggested DNS settings. Unicode
# name. (optional)
Domain:
# Account to deliver to.