![]() ![]() ![]() Email is sent from a mobile device having its SMTP connection NOT authenticated. ![]() The email is an auto-generated notification and is sent from a server, network device, or third-party software.When internal emails (those sent from and to the same domain) are blocked, one of the below is true: MailEssentials recognizes internal emails as inbound when it is not installed on the Exchange server or when the same Email Domain is spread through mail servers physically situated in different locations such as in hybrid setups having Exchange on-premise and Exchange Online (O365) using the same domain. Note that the Anti-Spam module is designed to only listen to and scan Inbound SMTP traffic. This article addresses the issue of internal emails getting flagged as inbound and blocked by the Anti-Spoofing spam filter. ![]()
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