[BlueOnyx:21595] Re: 550-5.7.1 this message does not meet IPv6 sending guidelines regarding PTR

[Maurice de Laat]

> It truly is confusing to me, how only this one 5208 suffers from this 
> ailment. I thought IPv6 was disabled in BlueOnyx, but this box 
> announces IPv6 over sendmail anyway… At least it does to Google, and 
> others that <rant>rediculously</rant> deny mail connections from MTAs 
> without reverse DNS…
>
I have the same on 5209R. I have not enabled ipv6 in any way, but my 
provider also provides a ipv6 for the vps. This makes outgoing sendmail 
connections to google's server over ipv6.

Maurice