On Fri, 15 Aug 2025 11:34:52 -0400 pgnd via Postfix-users <postfix-users@postfix.org> wrote:
[snip] > > how can the sending of these > > "Subject: Postfix SMTP server: errors from > unknown[161.35.204.54]" > > specific admin notices, be rate limited, or otherwise quieted down? [snip] Personally, with that kind of abuse I'd start blacklisting Digital Ocean IP addresses, or even entire netblocks, and be done with it. **And I say this as a DO customer.** (But perhaps for not much longer, and this is the reason why.) Their system of being able to fire-up, kill, and fire-up new droplets so easily is a Godsend for network abusers, and they don't appear to be doing much, if anything, to limit the abuse from their networks. So bad has their reputation become that, when I recently complained to some on-line colleagues about my DO servers being blacklisted by "AT&T" they responded (paraphrasing) "No surprise. DO is a problem." Regards, Jim -- Note: My mail server employs *very* aggressive anti-spam filtering. If you reply to this email and your email is rejected, please accept my apologies and let me know via my web form at <http://jimsun.LinxNet.com/contact/scform.php>. _______________________________________________ Postfix-users mailing list -- postfix-users@postfix.org To unsubscribe send an email to postfix-users-le...@postfix.org
