<div dir="ltr">DKIM is a method of publishing a public key in a txt DNS record, with which the subject line of every email sent, is signed. When yahoo MTA's receive an email, they don't just check the PTR record, they also check the subject line signature, with the public key available in the DNS records. If the signatures match - email goes through, otherwise it's dropped.<div>
<br></div><div>And as for SPF: <a href="http://en.wikipedia.org/wiki/Sender_Policy_Framework">http://en.wikipedia.org/wiki/Sender_Policy_Framework</a><br><br><div class="gmail_quote">On Mon, Feb 28, 2011 at 1:39 PM, Uri Even-Chen <span dir="ltr"><<a href="mailto:uri@speedy.net">uri@speedy.net</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">Yahoo and Hotmail are very important. Why did you set up SPF and DKIM?<br>
what are they anyway? try removing SPF and DKIM for your domain and<br>
then send again.<br>
<br>
By the way, I'm using Google Apps. You might want to consider Google<br>
Apps (free account) instead of setting up your own mail server.<br>
<br>
Uri Even-Chen<br>
Mobile Phone: +972-50-9007559<br>
E-mail: <a href="mailto:uri@speedy.net">uri@speedy.net</a><br>
Website: <a href="http://www.speedy.net/" target="_blank">http://www.speedy.net/</a><br>
<br>
<br>
<br>
<br>
2011/2/28 Hetz Ben Hamo <<a href="mailto:hetzbh@gmail.com">hetzbh@gmail.com</a>>:<br>
<div><div></div><div class="h5">> If it was only for me, I could do that, but what would you tell a paying<br>
> customer? here's a mail box, but you cannot send emails to Yahoo and<br>
> Hotmail? :)<br>
> Hetz<br>
><br>
> On Mon, Feb 28, 2011 at 10:36 AM, Oron Peled <<a href="mailto:oron@actcom.co.il">oron@actcom.co.il</a>> wrote:<br>
>><br>
>> On Monday, 28 בFebruary 2011 02:34:32 Hetz Ben Hamo wrote:<br>
>> > Any tips what can be done about these 2? (hotmail and yahoo)<br>
>><br>
>> Ignore them. They are dead beef...<br>
>><br>
>> --<br>
>> Oron Peled Voice: +972-4-8228492<br>
>> <a href="mailto:oron@actcom.co.il">oron@actcom.co.il</a> <a href="http://users.actcom.co.il/~oron" target="_blank">http://users.actcom.co.il/~oron</a><br>
>> The day Microsoft makes something that doesn't suck is probably the day<br>
>> they start making vacuum cleaners - Ernst Jan Plugge<br>
><br>
><br>
><br>
> --<br>
><br>
> חץ בן חמו<br>
> חץ-ביז (הוסטינג)<br>
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