WebAug 10, 2024 · That's a long standing issue with Public folders - their secondary addresses do not flow to the EOP backend, which has the Directory Based Edge Blocking feature. Well, actually a similar issue with O365 groups exists. In a nutshell, the DBEB feature blocks every message addressed to "unknown" recipient. For "regular" object types, it's not a ... WebOct 24, 2013 · We are aggressively working to design a solution that will make Directory Based Edge Blocking (DBEB) available within Exchange Online Protection (EOP). This functionality is targeted to be added to the service in the first quarter of 2014. In the meantime, here are some suggested configurations to help customers who want this …
Non-Delivery Report: [550 5.4.1 Recipient address rejected: Access ...
WebFeb 21, 2024 · If you select Authoritative, you must confirm that you want to enable Directory-Based Edge Blocking. If you select Internal Relay, you can enable the match-subdomains to enable mail flow to all subdomains. For more information, see Enable mail flow for subdomains in Exchange Online. When you're finished, click Save. WebNov 15, 2024 · This is used for Directory Based Edge Blocking (DBEB) only so that external mail for Public Folders is not blocked by DBEB. DBEB is automatically available when recipients are in Exchange Online, so there’s no need to synchronize this using Azure AD Connect. Uncheck the Exchange Mail Public Folders in the Optional Features in … lampes klarus
How to Fix ‘Recipient Address Rejected’ Error in Outlook?
WebJul 2, 2024 · Stopping only occurs when hard fail is configured, in which case all non-conformant mail is dropped which will include a lot more than just spoofed origin domain mail. It is a common mistake made during implementation of SPF, DKIM, and DMARC. flag Report Was this post helpful? thumb_up thumb_down lock WebTo disable Directory Based Edge Blocking (Not Recommended) Log into Exchange Online. Navigate to Mail flow, then select Accepted domains. Select the domain of the … WebJul 21, 2016 · To my knowledge, the 5.4.1 external mail flow could occur when Exchange Online Protection rejects the coming messages because the Directory Based Edge Blocking (DBEB) doesn't recognize the public folder as a valid recipient in Exchange Online. A workaround for this issue is to covert the smtp domain from Anthoritative to … lampes kundalini