v4BL Logo V 4 B L . o r g
The SMTP IPv4 DNS Block List.
Current Block List IP Count: 448 Million
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WHAT WE DO:
We operate the largest SMTP IPv4 DNS Block List Service. (Read our Acceptable Use Policy here)
We provide two primary publicly available services:
  » 1. The V4BL/FULL Block List - which is a commercial/pay-for-use service.
  » 2. The V4BL/FREE Block List - which continues to be completely FREE and OPEN for public use at your own risk and discretion.
    It is available to any IPv4 capable DNS client and now holds 86.5 M IPs.

OUR LINKS:
  » Is my email server listed? (How can I get my IP delisted)
  » List Usage: Acceptable Use Policy/Abuses/Misuses. (How can I use this list?)
  » E-mail server basic setup steps
  » Site/Service Status, Notifications & Changes log
  » Some typical reasons we list IPs.
  » Why V4BL?

SOME STATS:
Over the last 30 days: V4BL Block List has been updated by one IP every 0.624 seconds.
Over the past year the list has grown by 306,836,674 IPs. Oldest IP: 1352 days listed.
At any given moment, there are more than 35M new IPs queued awaiting basic compliancy checks.
See our historical results/progress here.


CONTACT US:
(Please do not email us with IP removal requests without having tried the online form: v4BL.org/delist)
Email support: Simply click on either of the green "at" symbols below.
      V4BL.ORG@GMAIL.COM   &   LIST.SUPPORT@V4BL.ORG
      (If you are going to type in our email address manually, please send to both email addresses)
Twitter.com/v4BL Follow @v4BL
Regular Post: P.O. Box 162756, Miami FL USA, 33116-2756

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