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- When signing up new subscribers, by using a subscription form that includes the custom field that you need to collect
- When you are importing data into MailUp
- By augmenting existing recipient profiles by using the profile updates feature
- By using a third party application that is integrated with MailUp and transfers that information to it
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Note that the messages will be sent based on the bandwidth sending speed that you are subscribing too. Using this type of scheduling actually helps you take advantage of that bandwidthyour sending capacity.
For instance, let's say that you subscribed to an amount of bandwidth that allows you to send around a sending speed of 10,000 messages per hour, and that the groups that you created in the step above contain between 5,000 and 10,000 recipients. By scheduling the messages as indicated, you are taking advantage of your bandwidth sending capacity and delivering messages between 8am and 9am to all recipients!