public java.util.List<MessageHeader> getReplacementHeaders() {
        return replacementHeaders;
    }
<p>
The list of message headers associated with the <code>BulkEmailEntry</code> data type.
</p>
<ul>
<li>
<p>
Headers Not Present in <code>BulkEmailEntry</code>: If a header is specified in <a
href="https://docs.aws.amazon.com/ses/latest/APIReference-V2/API_Template.html"> <code>Template</code> </a> but
not in <code>BulkEmailEntry</code>, the header from <code>Template</code> will be added to the outgoing email.
</p>
</li>
<li>
<p>
Headers Present in <code>BulkEmailEntry</code>: If a header is specified in <code>BulkEmailEntry</code>, it takes
precedence over any header of the same name specified in <a
href="https://docs.aws.amazon.com/ses/latest/APIReference-V2/API_Template.html"> <code>Template</code> </a>:
</p>
<ul>
<li>
<p>
If the header is also defined within <code>Template</code>, the value from <code>BulkEmailEntry</code> will
replace the header's value in the email.
</p>
</li>
<li>
<p>
If the header is not defined within <code>Template</code>, it will simply be added to the email as specified in
<code>BulkEmailEntry</code>.
</p>
</li>
</ul>
</li>
</ul>

@return The list of message headers associated with the <code>BulkEmailEntry</code> data type.</p>
        <ul>
        <li>
        <p>
        Headers Not Present in <code>BulkEmailEntry</code>: If a header is specified in <a
        href="https://docs.aws.amazon.com/ses/latest/APIReference-V2/API_Template.html"> <code>Template</code>
        </a> but not in <code>BulkEmailEntry</code>, the header from <code>Template</code> will be added to the
        outgoing email.
        </p>
        </li>
        <li>
        <p>
        Headers Present in <code>BulkEmailEntry</code>: If a header is specified in <code>BulkEmailEntry</code>,
        it takes precedence over any header of the same name specified in <a
        href="https://docs.aws.amazon.com/ses/latest/APIReference-V2/API_Template.html"> <code>Template</code>
        </a>:
        </p>
        <ul>
        <li>
        <p>
        If the header is also defined within <code>Template</code>, the value from <code>BulkEmailEntry</code>
        will replace the header's value in the email.
        </p>
        </li>
        <li>
        <p>
        If the header is not defined within <code>Template</code>, it will simply be added to the email as
        specified in <code>BulkEmailEntry</code>.
        </p>
        </li>
        </ul>
        </li>
aws-java-sdk-sesv2/src/main/java/com/amazonaws/services/simpleemailv2/model/BulkEmailEntry.java