---
schema_version: "1"
id: 2a161bb7b9918c4289229eab37c5676058e9886c42239292abfea961effce67a
title: Create a Dynamic Suppression List
collection: admin
version: current
locale: en-us
portal_url: https://docs.salesforce.com/admin/current/en-us/mktg/264-0-0/pardot_segmentation_recency_and_frequency.md
canonical_url: https://help.salesforce.com/s/articleView?id=mktg.pardot_segmentation_recency_and_frequency.htm&release=264.0.0&type=5
source_site: help.salesforce.com
content_type: documentation
content_hash: 2480d7a0e1e09c0186caa4abdd9930fe6bcd46bbf424ffb1eca11ce60f8bd740
description: To prevent your customers from experiencing marketing fatigue, space out the timing of your emails with a suppression list. Create a dynamic list with a rule type that filters based on the recency and frequency of email sends.
products:
  - Marketing
  - Marketing Cloud Account Engagement
release: "264"
---
# Create a Dynamic Suppression List

To prevent your customers from experiencing marketing fatigue, space out the timing of your emails with a suppression list. Create a dynamic list with a rule type that filters based on the recency and frequency of email sends.

### Required Editions

<table class="slds-table slds-table_bordered slds-max-medium-table_stacked slds-m-bottom_small edition"><colgroup><col></colgroup><tbody><tr class=""><td class="slds-cell-wrap" style="vertical-align:top;">Available in: <span>All Account Engagement Editions</span></td></tr></tbody></table>

During the setup for a dynamic list, you choose which rules to match prospects against. To use the dynamic list as a suppression list, select the **Prospect has been emailed** rule. Enter the number of sends and the time frame, and run the rule. Include the dynamic suppression list when you send marketing emails and to remove prospects who meet the criteria you set.

![Dynamic List rules slat shows Prospect has been emailed rule type selected, with integers in the time fields.](https://sf-zdocs-cdn-prod.zoominsoftware.com/tdta-mktg-pardot-264-0-0-production-enus/5fef4d4f-9a34-45c6-8cd3-e3200b9eeba8/pardot/images/pardot_suppression_rule.png)

Keep these considerations in mind when you use the Prospect Has Been Emailed rule.

- The rule considers list emails and email sent from Engagement Studio only.
- We recommend that you wait about 10 minutes between email sends. Allow time for the system to process an email send and mark a prospect accurately.
- Times are based on the default time zone for your business unit.
- Account Engagement evaluates time-based rules every 24 hours at midnight. For example, a rule removes a prospect when they haven’t opened an email in 30 days. If a prospect meets the 30-day criteria at 9:00 AM on Monday, they remain on the list until the next evaluation at midnight.
- When you use the suppression list in an engagement program, suppressed prospects pause at the step they’re on. When the time period is up, they resume the program and start receiving the paused emails.
- When multiple prospects have the same email address, the rule counts all list emails sent to prospects with that email address. For example, Prospect A and Prospect B have the same email address. You sent each prospect two emails in the last three days. The rule type counts four emails sent in the last three days.

#### See Also

- [Create a Dynamic List](https://help.salesforce.com/s/articleView?id=mktg.pardot_segmentation_create_dynamic_list.htm&release=264.0.0&type=5 "A rule-based dynamic list automatically adds prospects when they match the criteria and removes them when they don’t.")