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Authentication for local delivery
Question asked by SmarterUser - 5/11/2015 at 3:09 PM
Unanswered
We use Freshbooks to do some invoicing, and they send the invoices from maildelivery@freshbooks.com, with a Reply-To and Return-Path of one of our local addresses.  The Freshbooks include is in our SPF record.  For years, this worked just fine.  However, after  recent migration and upgrade, Freshbooks now gets a 550 Authentication required for relay error on invoices that need to be delivered on our server.  (Invoices to external addresses are received fine.)  Does the authentication look at the Reply-To and/or Return-Path?
 
We don't even see any connection attempts in the logs, which are set to detailed.  Freshbooks just sends the 550 bounces to the Reply-To address.
 

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