Thanks everyone for suggestions about stopping them, but we already have
that.. but to be clearer, just wanted to see if anyone had any insight
into the "operator" behind them..
Any sense of legitimacy at all?
Who's lists are they washing?
PS, don't block them, just tell them every email exists and is valid ;)
Just kidding, why let them use valuable resources..
PPS, You know the IP(s) can change at any time ;)
On 2019-04-29 3:40 p.m., Carl Byington via mailop wrote:
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On Mon, 2019-04-29 at 09:12 -0700, Michael Peddemors via mailop wrote:
Speaking of.. anyone have any insight into these guys?
They keep popping up on various CDN's eg, DO, AZURE, etc..
45.32.138.192 (M) 1 mta-wk-3.mk3.ipruz.com
45.76.246.69 (M) 2 mta-wk-3.mk1.uulio.com
45.76.246.127 (M) 1 mta-wk-5.mk3.uulio.com
45.77.5.86 1 mta-wk-0.mk1.ipruz.com
http://www.synapp.io
resolve spf records for all those domain names and merge the results,
followed by firewall rules of your choice.
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