I have custom rules setup to forward all eBay responses to another email account of mine, but lately, the forward gets stuck in an endless loop. I thought it was getting stuck in my mail server, but the messages keep getting additional "FW:" indicators attached to the subject line which makes me think Mail is causing the issue. Problem is I'm having trouble figuring out how to stop it. (Currently, we're talking about thousands of transmitted messages!) Anyone know how to stop Mail from these forwards, especially since it's in the background and doesn't show up in my Sent or Outgoing folder? (I already turned off the rule, but that apparently doesn't stop the ones that are stuck in the queue.) SEE UPDATED POST BELOW.