Improve email branding and SMTP envelope

lib/email/transport.ts

@@ -30,5 +30,15 @@ export function getMailTransport(): nodemailer.Transporter {
 }
 
 export function getMailFrom(): string {
-  return process.env.SMTP_FROM || "ANOUMA <support@anouma.org>";
+  const configured = (process.env.SMTP_FROM || process.env.SMTP_USER || "support@anouma.org").trim();
+  const unquoted = configured.replace(/^("|')(.*)\1$/, "$2").trim();
+
+  // Keep the address in the message header, but show only ANOUMA in mail clients.
+  if (unquoted.includes("<") && unquoted.includes(">")) return unquoted;
+  return `ANOUMA <${unquoted}>`;
+}
+
+/** Envelope sender used by strict SMTP relays for sender ownership checks. */
+export function getMailEnvelopeFrom(): string {
+  return process.env.SMTP_USER || "support@anouma.org";
 }