The receiving email server refused to accept the message. Validation failed when the server tried to validate that the sending domain and the sending IP address correspond. However, the particular verification method used is known to be error-prone, and industry standard recommendations advise that it shouldn't be used to reject messages.
The public folder store where offline address book '{0}' is hosted has been deleted. The current public folder store is: ...
The query returns too many records for the Threat Explorer. Add filter conditions or select a smaller time range and try ...
The Read, Write or Script source access permission of virtual directory '{0}' on server '{1}' is enabled. These settings ...
The receive connector '{0}' has been enabled to allow open relay to anonymous users. If enabled, and the server is Internet-facing, ...
The receiving email server refused to accept the message. Validation failed when the server tried to validate that the sending ...
The recipient ({0}) can't receive mail from ({1}) because the domain ({2}) isn't set up correctly. The domain ({2}) is missing ...
The recipient ({0}) isn't a valid email address in your Office 365 address book, but it exists in your organization's on-premises ...
The recipient ({Recipient}) can't receive mail from ({Sender}) because the domain ({Domain}) isn't set up correctly. The ...
The recipient ({Recipient}) can't receive mail from ({Sender}) because the SPF record for domain ({Domain}) isn't set up ...