prosmart

Greetings Long time (daily) user - first time poster. Our ISP, siteground has been using mailspamprotection.com for years and everything has been rosy. About a week or so ago (maybe two) we have been seeing more and more our ISP's machine being misdiagnosed by Spamcop as the source of spam, rather than the machine that is the "real" sender. Trying to work out what has changed and how we can fix the issue. https://www.spamcop.net/sc?id=z6865722595z78a087c1c0ace4cab227a12158185d3cz Can anyone shed any light on this for us please? Not sure what other info I can supply. Thanks Nigel.