Hosts other than the ones you specify, the The mail flow policy for the ALL sender group on the Mail Policies > HAT The default entry is named “ALL.” You can edit the default entry by clicking Is defined to take different actions depending on the listener type:įrom the host(s) you specify, and reject all other hosts. For more information, see Working with the Host Access Table Configuration. You can export all information stored in a Host Access Table to a file, and you can import Host Access Table informationįor a listener, overriding all configured Host Access Table information. Understanding Predefined Sender Groups and Mail Flow Policies. You can edit the predefined sender groups and mail flow policies,Īnd create new sender groups and mail flow policies. Listener, AsyncOS creates predefined sender groups and mail flow polices for Within a sender group, that sender group is matched if any of the conditions If you have configured multiple conditions When it finds a match, it applies the configured mailįlow policy to the connection. It evaluates the sender groups in the order listed on Receives a TCP connection, it compares the source IP address against theĬonfigured sender groups. For more information, seeĭefining Access Rules for Email Senders Using Mail Flow Policiesĭefine which hosts are allowed to connect to the listener on the Mail Policies > HAT Overview page. For example, you can define that a particular sender group isĪllowed to connect to the listener, but only allow a maximum number of messages For more information, see Defining Remote Hosts into Sender Groups.Ĭan define whether the defined remote hosts in the sender group are allowed toĬonnect to the listener and under what conditions. Remote hosts by their SenderBase Reputation score. For example, you can define multiple remote hosts in a sender group by IP address and partial hostname. You group remote host definitions into sender groups. Define the way in which a remote host attempts to connect to the listener. You configure HATs forĬonnections from remote hosts, you define the following information: Every configured listener has its own HAT. Set of rules that control incoming connections from remote hosts for a AsyncOS allows you to define which hosts areĪllowed to connect to the listener using the Host Access Table (HAT). For example, you can define remote hosts and whether or not theyĬan connect to the listener. Listener, you must define a set of rules that control incoming connections from Sending a Message from an Address That is Excluded from Sender Verification Rules.Sending a Test Message with a Malformed MAIL FROM Sender Address.Testing Your Settings for Messages from Unverified Senders.Searching for Addresses within the Sender Verification Exception Table.Excluding Unverified Senders from Sender Verification Rules Based on Sender’s Email Address.Defining Messages to Send to Unverified Senders Using the ACCEPTED Mail Flow Policy.Implementing More Stringent Throttling Settings for Unverified Senders.Throttling Messages from Unverified Senders Using the SUSPECTLIST Sender Group.Implementing Sender Verification - Example Settings.Partial Domains, Default Domains, and Malformed MAIL FROMs.SenderBase Settings and Mail Flow Policies.Using a List of Sender Addresses for Incoming Connection Rules. Importing the Host Access Table Configuration from an External File.Exporting the Host Access Table Configuration to an External File.Working with the Host Access Table Configuration.Defining Default Values for Mail Flow Policies.Defining Rules for Incoming Messages Using a Mail Flow Policy.Rearranging the Order of the Rules to Perform for Incoming Connections.Adding a Sender to an Existing Sender Group.Creating a Sender Group for Message Handling.Handling Messages from a Group of Senders in the Same Manner.Understanding Predefined Sender Groups and Mail Flow Policies.Defining Access Rules for Email Senders Using Mail Flow Policies.Sender Groups Defined by Querying DNS Lists.Defining Sender Groups by SenderBase Reputation Score.Sender Groups Defined by Network Owners, Domains, and IP Addresses.Defining Remote Hosts into Sender Groups.Overview of Defining Which Hosts Are Allowed to Connect.Defining Which Hosts Are Allowed to Connect Using the Host Access Table.Centralizing Services on a Cisco Content (M-Series) Security Management Appliance.Policy, Virus, and Outbreak Quarantines.Automatically Remediating Messages in Mailboxes.Configuring Email Gateway to Consume External Threat Feeds.Rejecting Connections Based on Domain Name or Recipient Address Getting Started with Cisco Email SecurityĪre Allowed to Connect Using the Host Access Table.
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