550 Error When Sending Share Link from OneDrive
Question asked by ben - 10/29/2015 at 3:20 PM
When a customer on my Smartermail server tries to send a "Share" email from their OneDrive account to another customer on the Smartermail server, the sender receives a bounce back message stating "550 Authentication is required for relay." I have seen the same issue on news sites when trying to share an article in the past, but can't remember where.
Any ideas?

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