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mc_customize_email_headers

github-actions[bot] edited this page Jun 3, 2026 · 4 revisions

Filter event notification email headers.

Auto-generated Example

add_filter(
   'mc_customize_email_headers',
    function(
        array $headers,
        object $event
    ) {
        // Your code here.
        return $headers;
    },
    10,
    2
);

Parameters

  • array $headers Email headers.
  • object $event Event object.

Returns

string

Files

apply_filters( 'mc_customize_email_headers', $headers, $event )

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