[CentOS] Re: DKIM

Wed Sep 24 18:42:58 UTC 2008
Scott Silva <ssilva at sgvwater.com>

on 9-24-2008 11:31 AM Bob Hoffman spake the following:
>> I'm running sendmail. The single number one issue is to never 
>> bounce email. Reject is fine, but if you have anything doing 
>> bounce you'll likely wind up on their blocklist for a day or 
>> few. Spammers love to use yahoo addresses as from addresses, 
>> so if you are bouncing any mail, you'll likely be spamming 
>> yahoo in their eyes and in fact most people's eyes these days.
>> I have multiple hosting accounts and not all have SPF 
>> records, although this might help as well, but if you keep 
>> outgoing clean, you'll get through to yahoo users as well. 
>> And if it winds up in their spam box, it is their 
>> responsibility to move it out and approve the sender. Yahoo 
>> does run extremely strict filtering and that's just how it is 
>> for everyone. If anything in an email is at all spammy (and 
>> it's really easy to cross that fine line), it'll wind up in 
>> the spam box.
> John,
> I am pretty sure I am not bouncing mails...I have catchalls and they go to
> devnull..however I could be wrong since that only affects my domain mails
> only. I am sure there is something else I should do.
> Yahoo is a propenent of DKIM and they say they would like mail better with
> it. Infact, I think it almost whitelists you with them, until you screw up.
> They highly suggest it if you are sending bulk mails or have large user
> lists. They say you should do it.
> I am starting to look at headers from other mailings from other sites. So
> far all that have been tagged as spam do not DKIM/domain keys set up. So
> far... Yahoo will not answer my question.

See if your questions are answered here

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

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