Carl Zwanzig writes:
 > On 3/30/2021 9:28 AM, Mark Sapiro wrote:
 > > I had two servers blocked by ATT, fortunately not this one. They were
 > > both DigitalOcean droplets,[...]
 > 
 > FWIW, a couple of my regular correspondents have said that DO generally does 
 > not have a great email reputation, and that they're moving lists to other 
 > platforms.

DO hosts a large domain (appears to be a hosting reseller; don't
recall offhand, if you want to know reply to me off list and I'll
summarize to the list) that regularly tries to exploit my nonexistent
O365 server and my also nonexistent DoH server, among others whose
exact targets I don't remember offhand.

I wrote the domain once, got nothing, nothing changed.  I've blocked a
couple of /20s and even a /16 and I haven't seen DO for a few weeks.  I
also wrote DO once, got a thank you note, nothing visibly changed.[1]
:-/

Steve

Footnotes: 
[1]  To be honest, I'd already blocked the source address, but the
only repeater I ever saw was my own employer's vuln scanner. :-รพ What
a PITA, 9000+ accesses as quickly as they could connect.  During work
hours (gggaaaah!) to boot.


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