Re: [hosers-announce] adding SPF checks for incoming mail

[Jeff Schroeder <jeffs@xxxxxxxxxxx>]

When you reject mail this way, does it get bounced back to the sender?

I ask because my work for some reason instituted some sort of crappy 
spam blocker a while ago that doesn't seem to actually block any spam, 
however it prevents mail coming from my server (or ellipsis.cx - but 
comcast.net and gmail.com both work) from appearing in my inbox.  No 
bounce is recieved so I am only guessing that it is a spam blocker...

jeff

Joel Uckelman wrote:

> In an effort to stop more spam at the door, I'm setting up SPF checking
> on charybdis. SPF is a scheme by which the owner of a domain publishes
> a list (in DNS) of servers from which mail from that domain may originate.
> The idea is that if I receive mail claiming to be from example.com but
> the server which sent it isn't one of those listed by example.com, then I
> can safely reject the mail as junk. This will help with spam from commonly-
> spoofed domains which have their own SPF records. 
>
> I've been running an SPF-checker on scylla for about a week now with no
> problems. If you do notice that you're not getting some of your mail because
> of this (unlikely, but not impossible), please let me know.
>
> Note that this does *not* mean that I will be publishing SPF records for
> ellipsis.cx/nomic.net just yet. SPF creates some issues with mail forwarding;
> I think I have a solution for those of us using .forward, but I want to test
> it first.
>
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> hosers-announce@xxxxxxxxxxx
> http://lists.ellipsis.cx/mailman/listinfo/hosers-announce
>
>  

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