Thanks for joining us in the Community. We certainly understand why it would be helpful to allow contacts to set preferences on how often they get your emails. The only way contacts have the ability to update preferences is from the update profile form which allows them to update which lists they want to be on and also gives them the option if they unsubscribe. For more information on this please click here.
In addition, we'd be more than happy to pass along your feedback regarding the frequency.
Brian_H Community & Social Media Support
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