[CentOS] Re: DKIM

Scott Silva ssilva at sgvwater.com
Wed Sep 24 21:38:38 UTC 2008


on 9-24-2008 2:23 PM Ralph Angenendt spake the following:
> Bob Hoffman wrote:
>>  
>> I have to say, in the 7 months or so since I got into this whole linux
>> webserver, this is the most active thread I have ever encountered.
>> I would assume most of us are a little unsure about the whole
>> dkim/spf/sender id thing. And even according to the websites themselves,
>> they are not sure of their own standards.
> 
> No, I'm very sure about SPF. It's crap. Utter crap. And it can break mails 
> in a very funny way.
> 
> Let's say you send me a mail to ralph-IFYaIzF+fle4UlQgPVntAg at public.gmane.org That mail is just forwarded
> to a different mail account. Now I get a mail from someone-kxpWdYJlNhdBDgjK7y7TUQ at public.gmane.org, but
> I get it via mail.centos.org which clearly isn't a server you would allow to 
> send mails out as @hoffman.com when you set up SPF for your domain. So if I 
> drop mails which don't have a "correct" SPF record - I'd drop that mail. 
> 
> Although your domain has correct SPF records.
> 
> And yes, there are ways around it which make the whole thing even uglier.
> 
But shouldn't a forwarder add its own envelope and a set of received headers?


-- 
MailScanner is like deodorant...
You hope everybody uses it, and
you notice quickly if they don't!!!!

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