[July 1, 2018] On 30 June 2018, our uptime monitoring system has sent out an unusually higher number of alerts due to multiple DNS failures, around the world, from the Google and CloudFlare DNS servers. The issues began at 10:56AM (EST), when most of our 12 uptime monitoring locations have started failing to resolve hostnames that […]
Category: 16.01 Incidents
exitnodes.tor.dnsbl.sectoor.de & tor.dnsbl.sectoor.de – False Positives & Removed
[June 5, 2018] These 2 RBLs started issuing false positives, blacklisting everything: exitnodes.tor.dnsbl.sectoor.de tor.dnsbl.sectoor.de We have now removed them from our system. However, you may have received some false positive notifications regarding these 2 RBLs; you may safely ignore those notifications. The results in your blacklist monitoring reports will be corrected by our system, the […]
dnsbl.inps.de – Removed from our system
[May 29,2018] IPv4 RBL dnsbl.inps.de has been removed from our system, as they have decided to discontinue the RBL project for the time being. For more info, please see: http://dnsbl.inps.de All IPs currently listed on this RBL will appear as being delisted during the next time your monitors are checked.
SenderScore False Positives
[April 13, 2018 – UPDATE] We initially thought they are false positives, but every manual check we’ve done has been verified on their website as well, and confirmed not to be a false positive. It looks like they are just blacklisting and delisting entire blocks within short intervals of time (same day), for some reason. […]
[5 Apr 2018] Uptime Monitoring – CloudFlare DNS Issues
[April 6, 2018] Our uptime monitoring network has suffered a partial outage, due to DNS resolving issues from CloudFlare. Details below: 19:20 UTC we started noticing degraded DNS performance in our London and Frankfurt uptime monitoring locations. Upon investigation we noticed that CloudFlare hostnames were not resolving properly in these two locations, and thus being reported as […]
dnsbl.othello.ch – False Positives & Disabled
[January 22, 2018] dnsbl.othello.ch started issuing false positives, and it appears to have been discontinued. We have now disabled this RBL in our system, and we will keep monitoring the situation as it progresses. If you’ve received a blacklist notification regarding this blacklist, you can safely ignore it, and the results will be corrected the […]
rbl.iprange.net – False Positives & Disabled [update: re-enabled]
[January 2, 2018 – UPDATE] RBL has been re-enabled under the new name: rbl.realtimeblacklist.com All the false positives regarding this RBL should be cleared out of the system once your monitors will be automatically processed/checked again. [January 1, 2018] The ‘rbl.iprange.net’ RBL has started issuing false positives, showing every IP as being blacklisted. We have now […]
rbl.efnetrbl.org – removed [update: reinstated]
[October 15, 2017 – UPDATE] The RBL has now been reinstated after coming back online. [October 13, 2017] This RBL has been removed from our system, as it appears to be down for more than 24 hours. We’ll keep an eye on it, and if it ever comes back online we’ll consider re-adding it to […]
korea.services.net – removed
[October 11, 2017] This RBL has been removed from our system, as it appears to be down for more than 24 hours. We’ll keep an eye on it, and if it ever comes back online we’ll consider re-adding it to our platform.
15 Aug 2017 Outage
[August 15, 2017] Due to a hardware failure on a critical node, we’ve experienced an outage around 2 hours long on 15 Aug 2017. At 14:04 (UTC) our on-site techs were alerted that one critical server in our infrastructure was suffering an outage. Due to this server playing a critical role in our infrastructure, the […]