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IronPort - Configuration Guide - AsyncOS 7.6.1

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Q<br />

Glossary<br />

Queue In the Cisco <strong>IronPort</strong> appliance, you can delete, bounce, suspend, or redirect<br />

messages in the email queue. This email queue of messages for destination<br />

domains is also referred to as the delivery queue. The queue of messages waiting<br />

to be processed by <strong>IronPort</strong> Anti-Spam or message filter actions is referred to as<br />

the work queue. You can view the status of both queues using the status<br />

detail command.<br />

R<br />

RAT Recipient Access Table. The Recipient Access Table defines which recipients<br />

will be accepted by a public listener. The table specifies the address (which may<br />

be a partial address or hostname) and whether to accept or reject it. You can<br />

optionally include the SMTP response to the RCPT TO command for that<br />

recipient. The RAT typically contains your local domains.<br />

Rate Limiting Rate limiting limits the maximum number of messages per session, the<br />

maximum number of recipients per message, the maximum message size, the<br />

maximum recipients per hour, and the maximum number of concurrent<br />

connections you are willing to accept from a remote host.<br />

RCPT TO See Envelope Recipient.<br />

Receiving The act of receiving email messages on a specific listener configured on an IP<br />

interface. The Cisco <strong>IronPort</strong> appliance configures listeners to receive email<br />

messages — either inbound from the Internet, or outbound from your internal<br />

systems.<br />

Reputation Filter A way of filtering suspicious senders based on their reputation. The SenderBase<br />

Reputation Service provides an accurate, flexible way for you to reject or<br />

“throttle” suspected spam based on the connecting IP address of the remote host.<br />

S<br />

Sender Group A sender group is simply a list of senders gathered together for the purposes of<br />

handling email from those senders in the same way (that is, applying a mail flow<br />

policy to a group of senders). A sender group is a list of senders (identified by<br />

IP address, IP range, host/domain, SenderBase Reputation Service<br />

classification, SenderBase Reputation score range, or DNS List query response)<br />

separated by commas in a listener’s Host Access Table (HAT). You assign a<br />

name for sender groups, as well as mail flow policies.<br />

Soft Bounced<br />

Message<br />

GL-6<br />

A message whose delivery will be reattempted at a later time base on the<br />

configured maximum number of retries or maximum time in queue.<br />

Cisco <strong>IronPort</strong> <strong>AsyncOS</strong> 7.6 for Email <strong>Configuration</strong> <strong>Guide</strong><br />

OL-25136-01

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