Upgrade for Live Support

All of our paid plans come with access to our highly experienced technical support team.

  • Contact us via Email, Phone, or Ticket
  • Detailed Explanation of Your Lookup Results
  • Guidance to Help Resolve Your Problems
  • RFC Compliance Best Practices
  • Blacklist Delisting Support

Let our experts help you resolve your blacklist issue!

Get Blacklist Support

ZapBL

What you see when your domain has this problem
Added to ZapBL Details area Ignore

More Information About Zapbl

Listing on the ZapBL indicates that a ZapBL admin email address or spam trap received spam that advertized the listed domain. ZapBL is a blacklist comprised of IP addresses that ZapBL admins and others using their blacklist do not want to receive mail from. ZapBL avoids listing IP addresses for Backscatter with an exception for when email systems reply to spam or viruses with rejection reports stating they've detected spam or viruses".

 

More information about ZapBL can be found at their website: http://zapbl.net/

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. MxDelivery 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.
Learn More