30-Oct-2026 — advertise the public host and keep large folders usable #407

build 1027 — commit d4414ce

On Profile → External Email Setup, the incoming and outgoing server names can be edited. Typing localhost switches both sides to the local test ports and turns SSL off, so a laptop can point a mail app at this machine. For a live site, keep the public hostname with IMAP 993 and SMTP 465, both SSL/TLS.
When mail applications are switched off, the warning links through to Admin → Mail Settings → API. That setting is labelled Allow External Mail Support, and the help text names SMTP 465 and IMAP 993 with SSL/TLS.
Large folders in Apple Mail, Outlook or Thunderbird load in batches so the message list does not stall. Copying a message (for example into Deleted) keeps the original conversation where it is.