I have a domain name that is being used as the "from" address in millions of spam messages. I get over 10,000 NDRs every day!
The original messages aren't coming from my machine, the spammers are just using my domain name. I know I can't do anything about that, but I'd like to make it as difficult as possible for them.
I've already updated the SPF record for my domain but I'd like to know how to blacklist my domain in as many places as possible.
I don't care about the reputation of my domain as I never use it to send email. I use it for inbound only and for brand protection.
Do you have any recommendations on where and how to do this?
Here is a typical NDR:
From: Katie Cameron <ssollera0@MYDOMAINHERE.co.uk> To: <ssoller@OTHERDOMAIN.org> Subject: We've Just Come Across Something Huge! Date: Mon, 23 Jun 2014 19:51:21 +0100 MIME-Version: 1.0 Content-Type: multipart/related; type="multipart/alternative"; boundary="----=_NextPart_000_0004_01CF8F1C.817E2D60" X-Priority: 3 X-MSMail-Priority: Normal Importance: Normal X-Mailer: Microsoft Windows Mail 6.0.6002.18005 X-MimeOLE: Produced By Microsoft MimeOLE V6.0.6002.18005 X-pstn-neptune: 500/484/0.97/100 X-pstn-levels: (S: 0.01937/98.34226 CV:99.9000 FC:95.5390 LC:95.5390 R:95.9108 P:95.9108 M:97.0282 C:98.6951 ) X-pstn-dkim: 0 skipped:not-enabled Message-ID: <email@example.com> X-pstn-status: off Return-Path: ssollera0@MYDOMAINHERE.co.uk