v34.1

• Fix: Workspace SMTP integrations now connect to servers that advertise only AUTH LOGIN (such as Azure Communication Services) — the raw SMTP sender hardcoded AUTH PLAIN and was rejected with a 504 before credentials were ever checked. It now reads the AUTH mechanisms advertised in EHLO and uses LOGIN when PLAIN isn't offered, preferring PLAIN when both are available (#368).
• Fix: Unsubscribing from the notification center works again. The widget's "Unsubscribe" action and per-list toggle (and the console) now post to a dedicated /unsubscribe endpoint, while /unsubscribe-oneclick is reserved for the RFC 8058 mail-client one-click carried in the List-Unsubscribe header (it still accepts the legacy JSON body as a backward-compatible shim). When v34.0 made /unsubscribe-oneclick strictly RFC 8058 for the Gmail/Yahoo one-click fix, the notification center's JSON request was rejected with 400 "Invalid request" and contacts stayed subscribed (#371).
• Fix: A freshly installed root account no longer crashes the console on first login. Before any workspace existed, user.me returned "workspaces": null instead of [] for the ROOT_EMAIL user — the root path returns the workspace list straight from the database, which is a nil slice when empty — and the console crashed with Cannot read properties of null (reading 'length') instead of redirecting to workspace creation. The repository now returns an empty (non-nil) slice so the API always serializes [], and the console normalizes a null workspaces to an empty array as a safeguard (#367).
• Fix: An mj-button (or mj-social) whose inner padding was edited in the visual editor no longer vanishes in Gmail — the inner-padding object was compiled into the CSS as a Go map literal (padding:map[bottom:0px top:0px]) that strict clients reject; it now compiles to a valid CSS shorthand, and the editor no longer stores padding as an object (#369).