On Fri, 11 Aug 2017, Dianne Skoll wrote:
On Fri, 11 Aug 2017 15:27:52 +0000
hospice admin <hospice...@outlook.com> wrote:
text = "v=spf1 exists:%{i}._spf.xyz.com ~all"
What I'd like to do is turn this into an RBL check, but
eval:check_rbl('Evil-ESP','_spf.xyz.com')
I understand what you're trying to do, but have you thought about the
implications? You are allowing an evil (your word) organization to be
an RBL for you. They may very well put every possible IPv4 address in
their exists: SPF record which would not bode well for your spam
filtering...
Indeed.
If it's an email service provider, then you might be better served
checking for a specific domain name or IP(s) in the Received header chain,
or potentially doing MTA checks to reject them up front if you don't want
their garbage at all.
--
John Hardin KA7OHZ http://www.impsec.org/~jhardin/
jhar...@impsec.org FALaholic #11174 pgpk -a jhar...@impsec.org
key: 0xB8732E79 -- 2D8C 34F4 6411 F507 136C AF76 D822 E6E6 B873 2E79
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