MailboxTester required a usable SECRETS_KEY unconditionally, refusing an
unauthenticated relay's test-send on a fresh install with no key yet, even
though real sending never touches the cipher for that mailbox. Gated the
check on authenticates, same as the password-presence check beside it.
Comparison pass across MailboxTester and MailboxTransport turned up two more
of the same shape. MailboxTransport's delegate-cache fingerprint decrypted
$box->password unconditionally, even when unauthenticated and never going to
use it — a mailbox that once authenticated, stored a password, and later had
authenticates unchecked would crash real sending the moment SECRETS_KEY
became unusable. And MailboxTester had no guard against a stored port <1;
Symfony silently reinterprets that as port 25 rather than refusing it, so the
test button could reach whatever happens to listen there and report success
for a configuration MailboxTransport refuses outright.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
An SMTP relay with a host and a from address but no username or password
- a trusted local or private-network relay - always used to be seeded as
a placeholder, because the takeover required a username to treat an
account as real, and Mailbox::isConfigured() always required a stored
password. Laravel's own SMTP mailer has supported unauthenticated relays
all along.
Add mailboxes.authenticates (default true, so every existing row keeps
its current behaviour) to tell "does not authenticate" apart from
"authenticates, but nobody has typed the password yet" - the same empty
password column used to mean both. The takeover migration now seeds the
real account off the host/address alone and marks it authenticates=false
only when neither a username nor a password resolved; isConfigured(),
MailboxTransport and MailboxTester all read it before requiring or
sending a password; the edit modal gets a checkbox for it with the
password field's hint updated to match, in both languages.
savePurposes() only checked that each key was a nonempty string, so a
stale or tampered mailbox key (reachable by posting straight to
/livewire/update) saved successfully while MailboxResolver silently
returned null for it. Every purpose's key must now name a mailbox that
exists; system's must additionally be active, since every unmapped or
inactive OTHER purpose falls through to it.
EditMailbox::save() also cleared last_verified_at only when the
password changed, but smtpUsername() depends on address and username
too (falling back to address when username is blank) — changing
either while leaving the password untouched kept showing a successful
verification for an identity nothing had actually tested.
I3: nothing stopped an operator unchecking Aktiv on the mailbox that
mail.purpose.system points at. MailboxResolver::active() filters an
inactive mailbox at BOTH the direct lookup and the system fallback, so
that one checkbox could take mail.purpose.system to null and every
purpose without its own mapping down with it — the existing
system_required guard on savePurposes() reads as if this were covered,
but it only blocks the empty-mapping path, not this one.
EditMailbox::save() now refuses active=false against the mailbox 'system'
currently points at, the same way savePurposes() already refuses to leave
'system' empty.
I4: Admin\Mail::saveServer() writes mail.host — the platform's outbound
relay for every purpose mailbox at once — and CloudReady::toMail() puts a
customer's Nextcloud admin password in cleartext in the message body. So a
signed-in mail.manage session was already a credential-interception
primitive, the same threat Admin\Secrets' second gate exists for. Both
saveServer() and EditMailbox::save() (only when a new password is actually
being typed) now also require passwordRecentlyConfirmed(), following the
ConfirmsPassword pattern Secrets.php and Settings.php's two-factor actions
already use — including their per-action UI shape (an inline confirm form
scoped to the gated action), not a whole-page lock, so address, display
name, username, no-reply, active and the purpose mapping stay reachable
without confirming, per the brief's capability split.
Both gated and ungated paths are covered by tests, and both guards were
mutated away and confirmed to fail before being restored.
nexxo