31 Oct
2013
31 Oct
'13
1:52 a.m.
* Nolan Rollo <nrollo@kw-corp.com>:
It seems like the unspoken de facto that mail admins appreciate given the IP 203.0.113.15 is "203-0-113-15.[type].[static/dynamic].yourdomain.tld". This seems perfectly acceptable, it's short, detailed and to the point. Is there really anything bad about this?
Mail admins wanting matching forward/reverse DNS and hostnames that don't "look dynamically generated" is probably more of a human than an RFC thing: "We used to get a lot of spam from dialup IPs, or IPs without matching reverse DNS, so let's reject anything that comes from an IP without FcRDNS and greylist anything with more than X dashes and Y dots in it's hostname." Stefan