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

More Information About Kisa

A listing by KISA RBL indicates that the affected IP address has been seen sending spam to Korea Internet & Security Agency (KISA) mail servers. The KISA RBL uses a variety of spam information to determine IPs to blacklist for sending spam.

More information about KISA can be found at their website:

DMARC is the key to improving Email Deliverability!

Email is the key to your customer communication strategy. But, what is your email reputation?

Setting up and managing your DMARC configuration is the key to getting insight into your email delivery. MxToolbox is the key to understanding DMARC.

MxToolbox Delivery Center gives you:

  • Who is sending phishing email purporting to be from your domain
  • What is the reputation of your domains and delegated IPs
  • Where other senders are and What their reputations are
  • How your SPF, DKIM and DMARC setup is performing
  • What on-going maintenance you need to maintain and improve your email deliverability

  Learn More