On Thu, Sep 09, 2004 at 02:56:33PM +0100,
David Woodhouse <dwmw2(_at_)infradead(_dot_)org> wrote
a message of 16 lines which said:
That's strange. If you publish a SPF record for example.com, surely
mail.example.com (the name you announce in HELO) has a SPF record,
too?
strcmp("example.com", "mail.example.com");
As Mark said, they don't _share_ a record. They each have their own.
Well apparently, my english was not good enough to make me clear.
1) When you publish a SPF (I said SPF, not SenderID) record for
example.com, if your mail server is mail.example.com, you *also*
publish a SPF record for mail.example.com. Always. Otherwise, there is
a trivial way of spoofing you.
2) Since you already have a SPF record for both names, adding the HELO
check in SenderID changes nothing. You already had the two records.