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@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.