On Wed, 28 Jul 2021, Antony Stone wrote:
On Wednesday 28 July 2021 at 19:51:49, Pedro David Marco wrote:
Hi!
i have spam with this header:
Received: from a48-115.smtp-out.amazonses.com (HELO
a48-115.smtp-out.amazonses.com) (54.240.48.115)
Is there any way, based on its fqdn, to know whether an Amazon smtp host is
public or dedicated?
Apologies for what may seem like a silly question, but what's the difference?
I'm assuming he's asking if there's a chance that it's an open-relay SMTP server
or one dedicated to Amazon client systems.
I'd be shocked if it was an open-relay, it'd probably be hammered by now if it
were.
There's enough spam coming from AWS clients as-is. I've seen malware and phishes
coming out of AWS, I wouldn't wouldn't unconditionally trust anything from
them.
--
Dave Funk University of Iowa
<dbfunk (at) engineering.uiowa.edu> College of Engineering
319/335-5751 FAX: 319/384-0549 1256 Seamans Center, 103 S Capitol St.
Sys_admin/Postmaster/cell_admin Iowa City, IA 52242-1527
#include <std_disclaimer.h>
Better is not better, 'standard' is better. B{
