If your mailbox is from Gmail, it is sure that the emails that are sent to you from the administrative panel fall into the spam tray, this is a behavior of Gmail because they are sent from an automated system.
To get them directly to your inbox, follow these steps recommended by Gmail:
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Remove a sender's warning.
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Open Gmail on your computer.
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Next to Search , click the down arrow .
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In the "From" field, enter the sender's email address.
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At the bottom right, click Create a filter with these search criteria.
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Select Never report spam.
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Click Create filter.