<div class="gmail_quote">On Thu, Jul 7, 2011 at 04:27, <span dir="ltr"><<a href="mailto:errordeveloper@gmail.com">errordeveloper@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
<div class="im">On Thu, Jul 07, 2011 at 03:09:09AM +0200, András Murányi wrote:<br>
> On Wed, Jul 6, 2011 at 23:29, <<a href="mailto:errordeveloper@gmail.com">errordeveloper@gmail.com</a>> wrote:<br>
><br>
> ><br>
</div><div class="im">> > Firstly, I cannot see this being relevant to anyone on the list.<br>
> ><br>
> ><br>
> It is - I see the warning attached to many people's mails (on this mailing<br>
> list). Actually your mail has arrived with the warning: "This message may<br>
> not have been sent by: <a href="mailto:errordeveloper@gmail.com">errordeveloper@gmail.com</a> - Learn more - Report<br>
> phishing"<br>
<br>
</div>Yes, that's because the message was sent via the list server.<br>
SPF won't help, the warning which you is an awfull non-sense.<br></blockquote><div><br>I get the warning with many people's mails on the list, but definitely not all of them.<br> </div><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
<div class="im"><br>
> > Secondly, from my personal experience SPF doesn't help very much -<br>
> > you will need DomainKey and that need to be setup in the MTA.<br>
> ><br>
> ><br>
> I'll need to see if SPF has a positive effect on this - at the moment, I<br>
> just thought this is an emerging issue and people better hear about it from<br>
> a mailing list than having person-to-person mails lost in nowhere.<br>
<br>
</div>Nope, you had been mislead by those silly warnings.<br>
I am not going to explain how email delivery works.<br>
<br>
As I said, the reason why this sort of warning may<br>
come-up, is because the message from the list arrive<br>
with senders address in 'From:' from field, however<br>
it goes via the mailing list server, hence other<br>
fields do not match the domain name of the sender.<br>
<br>
Whoever coded the software you are using, haven't<br>
placed an exception for mailing lists. There are<br>
RFC-coliant header fields which must be looked at<br>
by that software, but they are being ignored, which<br>
is wrong.<br>
<div><div></div><div class="h5"><br></div></div></blockquote></div><br>Google coded the software - I'm using Gmail. I agree that these warnings are way unnecessary (so far 100% of them), but as I said, if they joined the hype, there's a risk that others will join it too and the nonsense will become a general practice.<br>
I didn't want to annoy you or anyone, however.... :o)<br><br clear="all">Andras<br>