The SpamCop Blocking List lists IP Addresses which have sent unsolicited email to SpamCop users. This is often an indication of a Virus or Botnet from a Malware infection contracted inside your network.
Are you confident your email is getting through?
You rely on email for business critical communication, so you need to know your email has been delivered to your customers and you need to know who is sending email on your behalf.
MxToolbox is YOUR expert on email deliverability. Delivery Center analyzes your DMARC, DKIM and SPF to give you the insight you need to make email configuration changes and get your emails to your customer's inboxes.