public String getMessageId() {
        return this.messageId;
    }
<p>
The unique message identifier returned from the <code>SendCustomVerificationEmail</code> operation.
</p>

@return The unique message identifier returned from the <code>SendCustomVerificationEmail</code> operation.
aws-java-sdk-ses/src/main/java/com/amazonaws/services/simpleemail/model/SendCustomVerificationEmailResult.java