It checks the IP address of the sending Server. In compares the sender server to a list of servers domains which are blocked by your organization. Based on the default priority value, here is the order of agents in which they are applied to the messages of the mailbox вЂ“ These agents have a priority value, and a lower value indicates a higher priority. In the typical condition, the Exchange Administrator needs to enable the anti-spam agents on Mailbox Servers when there is no Edge Transport server, or the organization does not have a robust anti-spam protection application. But first, understand how they work and protect the data. LetвЂ™s dig deep and learn how we can enable the anti-spam protection using various transport agents. So, there is no need to enable it manually.

Anti-malware protection was introduced with the Malware Agent since Exchange Server 2013 and is in вЂEnabledвЂ™ state by default on the Exchange Mailbox Servers.

NOTE: These agents are by default вЂEnabledвЂ™ on Edge Transport Servers.

You need to manually enable them at mailbox server to activate anti-spam protection. Anti-spam protection is a feature available in several transport agents like Content Filter Agent, Sender Filter Agent, Sender ID Agent, and Protocol Analysis agent.Microsoft has some inbuilt protection like anti-malware and anti-spam feature which you can configure to safeguard the data. And Exchange Administrator must secure its mail recipients from external threats like spamming, phishing, virus attacks, and hacking attempts. Exchange Server receives a vast number of emails in business organizations, in addition to sending many emails outside the organization.

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