[CentOS] DKIM

Nifty Cluster Mitch niftycluster at niftyegg.com
Wed Oct 1 02:48:33 UTC 2008


On Fri, Sep 26, 2008 at 08:15:05PM +0200, mouss wrote:
> Kai Schaetzl wrote:
>> Mouss wrote on Thu, 25 Sep 2008 16:20:09 +0200:
>>
>>> oh please no. hotmail don't delete my mail and I don't have an SPF  
>>> record. no do yahoo/gmail. and this was before I implemented DKIM. 
>>> and I've recently worked for a project where SPF didn't help with 
>>> hotmail
>>
>> Well, then they have some other obscure reason to silently delete all 
>> mail from me to my daughter's Hotmail account. I thought it might be 
>> the missing SPF record on that specific domain I used. Their support is 
>> not able to tell the reason.
>
>
> like all the gorillas, they have complex filtering mechanisms, mostly  
> based on "reputation". among the freemail trilogy (gmail, yahoo, 
> hotmail):
>
> - gmail is more or less "workable". in short, they have better filtering  
> mechanisms in the sense that if you don't have too much problems in your  
> network, you can get your mail delivered provided you do some  
> (reasonable) efforts.
>
> - yahoo are lost in space. their filters probably block a lot of junk,  
> but they also block a lot of legitimate mail, and it's hard to get  
> around this. but at least, they either block you at smtp time or file  
> your mail to a junk folder.



What happens if a dozen of us add a yahoo filter that marks "blabermount at his.domain.com"
as spam.   i.e. what happens on large mailing lists when a service like yahoo
sees a set of messages from a specific user as spam.  Then what happens when
a handful of users on that list fall into the spam category... at what point
does the list server look like a spam source?

I have seen one or two junk mail messages in my list folders recently
and see a bunch of normal posters end up in my spam folders both on
google and on yahoo.



-- 
	T o m  M i t c h e l l 
	Found me a new hat, now what?



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