Define Sendout Speed for a Group

Goal​

To configure the sendout speed for messages in a group.

Background Information​

The sendout speed setting is a useful feature to help minimize deliverability problems, especially with large groups. By default, the sendout speed is set to maximum unless adjusted manually.

Key reasons to limit sendout speed include:

• Preventing Spam Classification: Large-scale sendouts from an IP typically used for smaller groups can trigger spam filters. Slowing the sendout helps mitigate this risk.

• Address Quality Checks: For new groups with unverified addresses, slower sendout speeds allow time to assess spam complaints and interrupt the sendout if needed, avoiding broader deliverability issues.

When messages are sent at a controlled speed, spam complaints are spread over time, reducing the likelihood of widespread delivery problems across all addresses.

Procedure​

Follow these steps to define sendout speed for a group:

1. In the main navigation menu, click ​Audience > Group Management > Groups.

2. Create a new group by clicking the Create​ button or edit an existing group.

3. Navigate to the ​Sendout Options​ tab.

4. In the Sendout Speed area, select one of the following options:

   • Evenly distribute over a time frame: Sends messages at a consistent rate over the defined time frame. You must specify both the start and end times in the Time Frame area.

   • Send X emails per hour: Sends messages at a specific rate, ranging from 1,000 (minimum) to 500,000 (maximum) emails per hour.

5. In the Time Frame area, define the start and end times for the sendout.

   • If the end time is earlier than the start time, the sendout will occur overnight (e.g., 22:45 to 4:00).

6. If the message should be sent in a time zone different from your own, select the desired time zone from the Time Zone drop-down menu. This ensures the message reaches recipients at an appropriate local time.

7. Click Save to apply the settings.

Important Notes

• Channel-Specific Sendout Speed: Sendout speed settings apply only to email and SMS channels. To control the sendout speed for Mobile Push notifications, use a scheduled Whiteboard with a Random Split filter. For more information, see Mobile Push Campaigns with Sendout Speed Limitation.

• Carefully consider sendout speed adjustments for large or irregularly scheduled campaigns to enhance deliverability and reduce potential issues.