Okay, I'm getting tired of stuff like this...

From: "Kristie" <</>aaaaaacnls@interfracht.ch>
To: "anudag" <</>advertising@aiyon.com>
Subject: how r things

or...

From: "Mail Delivery System" <</>MAILER-DAEMON@smtp3.utc.sk>
Subject: Undelivered Mail Returned to Sender
To: erop@aiyon.com

What can I do to my domain to stop this crap? Contacting Square-Network seems to be futile over the past year or so (I've only had about three emails back from Coach, none of them incredibly productive). Even if I have to somehow disable all email activity to and from aiyon.com, I'll do it. I'm sick of this now.

EDIT: For now I've added a filter that diverts all emails with "aiyon.com" in the 'To' area towards the Trash. I don't get email sent to my aiyon email anyway.