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.
5d306fce31