<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> </head> <body> <div class="moz-cite-prefix">Hi Robert, i really appreciate the introduction of STARTTLS measurements! But if you do so, i strongly recommend to also introduce four new System Tags: IPv4 FCrDNS working IPv4 FCrDNS not working IPv6 FCrDNS working IPv6 FCrDNS not working A lot of mailservers will block or cancel inbound connections, if the sending server has no Forward-confirmed reverse DNS record. Some mailservers do this immediately, others do it at a later communication stage. So, when someone would create a new STARTTLS measurement, it would be a huge help to be able to only choose probes, which have FCrDNS. It shouldn't matter, if it's a simple or obfuscated DNS record. Please also take into consideration, to make FCrDNS mandatory for (new) anchors. BR, Simon On 14.12.22 15:04, Robert Kisteleki wrote: </div> <blockquote type="cite" cite="mid:6692a659-f973-72cb-ffdc-fd845506ea7c@ripe.net">Dear RIPE Atlas users, We recently published a RIPE Labs article containing a few proposals: <a class="moz-txt-link-freetext" href="https://labs.ripe.net/author/kistel/five-proposals-for-a-better-ripe-atlas/">https://labs.ripe.net/author/kistel/five-proposals-for-a-better-ripe-atlas/</a>. We'd like to encourage you to express your comments about this proposal (if you'd like to share them) here. Regards, Robert Kisteleki For the RIPE Atlas team </blockquote> </body> </html>