Help guide

Why Xero invoices go to spam (and how to fix it)

Updated September 27, 2026 · Code The Cloud

Xero says the invoice was sent. Your customer never saw it. You're not alone: sending invoices from your own email address has been one of the most requested features on Xero's ideas board since 2013.

Why it happens

Xero sends invoice emails from its own shared address, messaging-service@post.xero.com. You can set your business name and a reply-to address, but the email itself still comes from Xero.

Five fixes, easiest first

  1. Ask customers to whitelist post.xero.com and check junk and quarantine. It helps, but big organizations often won't change their rules for one supplier.
  2. Set your reply-to address in Xero's email settings so replies and questions reach you.
  3. Keep attachments small and avoid unnecessary files on invoices.
  4. Send the PDF from your own mailbox. Download the invoice PDF from Xero and email it from Outlook or Gmail. It lands best, but it's manual.
  5. Automate the send from Outlook. A connector can take the approved invoice from Xero and send it from your Outlook or Microsoft 365 address automatically, then mark it sent in Xero. That's what we're building (see below).

Is Xero fixing this?

Xero's ideas board shows the request as "in discovery," with no release date announced. Until it ships, fixes 1 to 5 are the options.

Use Outlook or Microsoft 365?

We're building a tool that sends your Xero invoices from your own Outlook address, PDF attached, marked sent in Xero. Early access is $15/month, first month free.

Join early access

Disclosure: Code The Cloud makes the early-access tool mentioned above. The other fixes on this page work without it.