I am not confident enough to use your link but I have viewed the Raw Source data. As far as I can tell, the delay in the e-mail reply to me seems to have occurred in the same server as shown in the example above.
Is there any update please. Most of the delayed mail happens to be notifications to me that something is happening on a forum that I help run, the long delays that are still hapenning are seriously affecting my ability to run the forum.
Please can you apply some pressure to get this resolved.