[CentOS] Re: DKIM

Wed Sep 24 19:56:37 UTC 2008
mouss <mouss at netoyen.net>

Bob Hoffman wrote:
>>>> AFAIR yahoo only looks for proper SPF records and then looks at 
>>>> content so far. My users interact with them all the time.
>>> Out of curiosity: What happens if you don't have SPF records?
>>> Ralph
>> Initially when I had to deal with sending to yahoo I would 
>> get a mix of mail dumping into the receivers spam box to 
>> downright rejections. Then it moved completely to rejections. 
>> I have exec's that send mail to all the big providers, 
>> usually to lawyers and lobbyists that are either too clueless 
>> or too cheap to have a better mail system. Aol and yahoo at 
>> the time just wanted SPF records and reverse DNS that resolves.
> Been reading about this stuff for hours. I gotta say that spf might be the
> thing to try first. It does not prove who you are, but it is supposed to
> make the big mail companies feel warm and fuzzy to know you are trying to
> prove you 'are you'.

prove what?

if the machine with an rDNS of bobhoffman.com sends mail from 
<*@bobhoffman.com>, and is the MX of this domain, would anybody think 
this is a forgery?

> SO I will do that first (especially since it does not require any
> installation stuff)
> On a side note...just got the RHEL annoucement. Huge kernel patch
> coming...woof.