SA Bugzilla – Bug 5143
False positives with HELO_DYNAMIC_IPADDR and HELO_DYNAMIC_DHCP
Last modified: 2022-03-06 16:35:24 UTC
Hi, A very large ISP in Canada, Videotron, hits this rule with the RDNS of their new offering: Static IP addresses on cable modem. RDNS: Dynamic: modemcable002.152-81-70.mc.videotron.ca. Static: modemcable014.58-70-69.static.videotron.ca This should be fixed, as many Videotron clients purchase a static IP address to have their own mail server. This service also comes with all ports open (dynamic has port 25 blocked in/out), so they are almost telling their clients to deliver directly and not use a smarthost. I know those who send e-mails should set their RDNS correctly, but we all know that it is not done in most cases. Also, a bad RDNS is managed by others rules right? I understand that it hits HELO_DYNAMIC_DHCP because it has "cable" in it, but I don't understand why it hits HELO_DYNAMIC_IPADDR (I'm not a regex guru).
Closing ancient stale bug.