[LINK] RFI: Spam-registration of IP-addresses
Chris Maltby
chris at sw.oz.au
Sun Nov 22 13:12:39 AEDT 2020
Hi Roger,
I'm not sure that your xamax.com.au SPF details are good.
xamax.com.au: "v=spf1 *ip4:103.27.32.5* +include:retailspf.smtp.com ?all"
retailspf.smtp.com: "v=spf1 ip4:192.40.160.0/19 ip4:74.91.80.0/20 ~all"
but the sending address at syd.hostingplatform.net.au is 103.27.32.232.
You could try changing the ip4:103.27.32.5 to ip4:103.27.32.0/24.
You might also want to set up a DMARC record so that you can receive
reports of messages that fail SPF/DKIM/ARC checks.
Yahoo is one of the fussiest, but also seems to permit the most real spam...
Chris
On 21/11/2020 7:14 am, Roger Clarke wrote:
> If anyone can point me to relevant sources to help me understand and
> address the following problem, I'd be very appreciative!
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