FromCopier Blog

Scan-to-Email Fixes

Why a copier stops emailing scans, and what to do about it.

October 29, 2026

Copier says "authentication rejected": the five causes, in order

The copier did not break. Something changed on the mailbox it borrows. Here are the five causes behind SMTP authentication failures on office copiers, checked in the order that finds the answer fastest.

Fix it · 4 min

Baron Maddock, CC BY 4.0, via Wikimedia Commons

Scan-to-Email Fixes

The durable fix

Give your office copier its own sending address and password, without using an employee's mailbox. Keep your current email provider and track delivery from your dashboard.