Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
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notice will be deemed received and properly served immediately when posted on the products or when an e-mail or other electronic communication is sent . 

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. OPTIONS: ["Contract by using", "None", "Unilateral termination", "Content removal", "Limitation of liability", "Jurisdiction", "Unilateral change", "Arbitration", "Choice of law"].