Do ESPs control inbox placement?
Myth: False. ESPs transmit mail but do not control inbox placement. Placement decisions are made by receiving mailbox providers based on sender reputation, authentication, content, and engagement.
ESPs influence delivery through infrastructure quality and sending practices. But the final placement decision belongs to Gmail, Microsoft, Yahoo, and other receivers.
Understand ESPs deliver mail; providers decide placement. Good ESP infrastructure helps but does not guarantee specific outcomes at receiving systems.
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