Spec: public ihasmail stays Stalwart-facing; INBUXA work goes to an INBUXA fork of ihasmail

docs/spec/features/masked-email.md

@@ -217,6 +217,9 @@ masks.
 
 ## ihasmail
 
+These go in the INBUXA fork of ihasmail, not public ihasmail, which stays
+Stalwart-facing (SPEC.md §5).
+
 - A **Masked addresses** section in Settings: the list (address, description,
   site, created, last mail, state), create with an optional description and
   site, copy, switch between enabled, disabled (to Trash) and deleted, and

docs/spec/features/multi-tenancy.md

@@ -241,6 +241,9 @@ Each requirement has an ID, and tests name the IDs they check.
 
 ## ihasmail changes
 
+These go in the INBUXA fork of ihasmail, not public ihasmail, which stays
+Stalwart-facing (SPEC.md §5).
+
 - Drop the "Tenants are a Stalwart Enterprise feature" notice and the edition
   check in front of the Tenants page. Keep `SHOW_ENTERPRISE_NOTICES` for
   talking to upstream Stalwart.

docs/spec/features/undelete.md

@@ -194,6 +194,9 @@ Task type `RestoreArchivedItem`, carrying the `accountId`, the
 
 ## ihasmail
 
+These go in the INBUXA fork of ihasmail, not public ihasmail, which stays
+Stalwart-facing (SPEC.md §5).
+
 - **Recently deleted**, a view in Mail (and in Files, Calendar and Contacts
   for their kinds). It lists what's restorable, newest first, with how long is
   left, searchable, with **Restore** and **Delete forever**. Visible only when