In <20040125035930(_dot_)GT7601(_at_)dumbo(_dot_)pobox(_dot_)com> Meng Weng
Wong <mengwong(_at_)dumbo(_dot_)pobox(_dot_)com> writes:
On Sat, Jan 24, 2004 at 10:49:04PM -0500, Philip Gladstone wrote:
| include:%{ir}.spf-my.dnsbl
|
| where the returned record is either 'v=spf1 +all' or 'v=spf1 -all'
yeah, but then the problem is spammers will start spamming from
4.3.2.1.spf-my.dnsbl, which is why maybe we should put in a requirement
that mail never be sent from a host with an underscore in its name
... ick.
Isn't sending email with a domain name with an underscore invalid
already?
Also, such records would have neither an A nor an MX record, and so
would fail sanity checks that many MTAs already make.
Besides, that is why I didn't suggest +all. Using ?all would be the
same as not having an SPF record anyway.
-wayne
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