#spamd — Public Fediverse posts

Running #OpenBSD 7.8 ​:openbsd:​

DNS: #nsd (3 Master Zones), #DNSSEC & #DANE (RFC6698) + #unbound
Firewall: #pf with auto-fed tables (IPS-style), spambot-tarpitting & service rate limits.
Mail: #smtpd (Multi-domain, RFC8461/MTA-STS) + #rspamd (DKIM) + #dovecot (IMAPS-only).
Spam-Defense: #spamd with auto-SPF-walk (no more greylisting issues).
Web: #relayd (TLS-Terminator, HSTS, CSP) + #httpd (NIP-05, Autoconfig, security.txt).
Performance: Lightweight "Fail2Ban" via 1-liner shell script (No Python crap!).

#Nostr Relay in Rust building...

#SelfHosted #SysAdmin #Security #Privacy

Running #OpenBSD 7.8 ​:openbsd:​

DNS: #nsd (3 Master Zones), #DNSSEC & #DANE (RFC6698) + #unbound
Firewall: #pf with auto-fed tables (IPS-style), spambot-tarpitting & service rate limits.
Mail: #smtpd (Multi-domain, RFC8461/MTA-STS) + #rspamd (DKIM) + #dovecot (IMAPS-only).
Spam-Defense: #spamd with auto-SPF-walk (no more greylisting issues).
Web: #relayd (TLS-Terminator, HSTS, CSP) + #httpd (NIP-05, Autoconfig, security.txt).
Performance: Lightweight "Fail2Ban" via 1-liner shell script (No Python crap!).

#Nostr Relay in Rust building...

#SelfHosted #SysAdmin #Security #Privacy

Running #OpenBSD 7.8 ​:openbsd:​

DNS: #nsd (3 Master Zones), #DNSSEC & #DANE (RFC6698) + #unbound
Firewall: #pf with auto-fed tables (IPS-style), spambot-tarpitting & service rate limits.
Mail: #smtpd (Multi-domain, RFC8461/MTA-STS) + #rspamd (DKIM) + #dovecot (IMAPS-only).
Spam-Defense: #spamd with auto-SPF-walk (no more greylisting issues).
Web: #relayd (TLS-Terminator, HSTS, CSP) + #httpd (NIP-05, Autoconfig, security.txt).
Performance: Lightweight "Fail2Ban" via 1-liner shell script (No Python crap!).

#Nostr Relay in Rust building...

#SelfHosted #SysAdmin #Security #Privacy

Running #OpenBSD 7.8 ​:openbsd:​

DNS: #nsd (3 Master Zones), #DNSSEC & #DANE (RFC6698) + #unbound
Firewall: #pf with auto-fed tables (IPS-style), spambot-tarpitting & service rate limits.
Mail: #smtpd (Multi-domain, RFC8461/MTA-STS) + #rspamd (DKIM) + #dovecot (IMAPS-only).
Spam-Defense: #spamd with auto-SPF-walk (no more greylisting issues).
Web: #relayd (TLS-Terminator, HSTS, CSP) + #httpd (NIP-05, Autoconfig, security.txt).
Performance: Lightweight "Fail2Ban" via 1-liner shell script (No Python crap!).

#Nostr Relay in Rust building...

#SelfHosted #SysAdmin #Security #Privacy

Running #OpenBSD 7.8 ​:openbsd:​

DNS: #nsd (3 Master Zones), #DNSSEC & #DANE (RFC6698) + #unbound
Firewall: #pf with auto-fed tables (IPS-style), spambot-tarpitting & service rate limits.
Mail: #smtpd (Multi-domain, RFC8461/MTA-STS) + #rspamd (DKIM) + #dovecot (IMAPS-only).
Spam-Defense: #spamd with auto-SPF-walk (no more greylisting issues).
Web: #relayd (TLS-Terminator, HSTS, CSP) + #httpd (NIP-05, Autoconfig, security.txt).
Performance: Lightweight "Fail2Ban" via 1-liner shell script (No Python crap!).

#Nostr Relay in Rust building...

#SelfHosted #SysAdmin #Security #Privacy

I added a few more translations of the phrase "The rest is trash" to the spamtraps at https://nxdomain.no/~peter/traplist.shtml (see https://nxdomain.no/~peter/the_rest_is_trash.html or https://bsdly.blogspot.com/2026/02/the-rest-is-trash.html).

If you want further translations added, please let me know (with translation in your message).

#spamtraps #greytrapping #spamd #openbsd #freebsd #antispam #imaginaryfriends #localization #cybercrime

The list without wrapper text is available as https://www.bsdly.net/~peter/sortlist.txt (BIG! -- 22975800 entries as of right now, will increase)

heh. with another 70 weeks of log data to sift through, the count of imaginary friends at https://nxdomain.no/~peter/traplist.shtml just rolled past seven million (also see https://nxdomain.no/~peter/eighteen_years_of_greytrapping.html or tracked https://bsdly.blogspot.com/2025/08/eighteen-years-of-greytrapping-is.html) #spamtraps #imaginaryfriends #spamd #smtp #cybercrime #openbsd

Following up on previous, the LinkedIn discussion revealed that there are people who have not heard about greylisting.

So here is my 2012 piece with updates, "In The Name Of Sane Email: Setting Up OpenBSD's spamd(8) With Secondary MXes In Play - A Full Recipe" https://nxdomain.no/~peter/in_the_name_of_sane_email.html

#spamd #antispam #spamd.conf #OpenBSD #blocklists #blacklists #greytrapping #greylisting #spam

The symptoms of what I take to have been a #phishing campaign aimed at users in #japan are no longer that visible in the backscatter.

But they will be visible as new #imaginaryfriends in the published #spamtraps list we user for our our #openbsd #spamd #graytrapping, see https://nxdomain.no/~peter/traplist.shtml and https://nxdomain.no/~peter/spammers_believe_in_300k_imaginary_friends.html (with the total now inching in the direction of the 5 million mark)

Welcome new imaginary friends [email protected] and [email protected] to the cast of millions at https://nxdomain.no/~peter/traplist.shtml (served up to us today by [email protected] and [email protected], respectively).

My favorite new imaginary friend (aka spamtrap) today was however [email protected], a faked sender address.

Logs for the interested at https://nxdomain.no/~peter/blogpix/new_imaginary_friends_20250306.txt

#spam #spamd #spamtraps #greytrapping #imaginaryfriends #cybercrime #antispam

The other horribly nonsensical thing I saw during the last 24 hours was the error messages GNU Emacs emits when it is faced with a file of a size that exceeds its expected per-buffer memory allocation.

Fortunately a sane solution was found for that particular problem (split that big hand generated log into smaller pieces) - search for "this log directory" in https://nxdomain.no/~peter/traplist.shtml #spamtraps #greyptrapping #spamd #antispam #cybercrime #imaginaryfriends

An update on #green #cybercrime #prevention: "Harvesting the Noise While it's Fresh, Revisited" https://nxdomain.no/~peter/harvesting_the_noise_revisited.html (tracked, prettified https://bsdly.blogspot.com/2022/12/that-grumpy-bsd-guy-harvesting-noise.html) now has an update about harvesting even more useful data from #openbsd #spamd log file noise.
#antispam #greytrapping #greencomputing #spam #email #smtp

Edit: per year statistics link now functional

For some reason I just looked up my now just over 2 year old piece "The Things Spammers Believe - A Tale of 300,000 Imaginary Friends" https://nxdomain.no/~peter/spammers_believe_in_300k_imaginary_friends.html (prettified, tracked https://bsdly.blogspot.com/2022/09/the-things-spammers-believe-tale-of.html) and realized that number will soon roll past the next big round marker. #spamtraps #traplist #spam #antispam #openbsd #pf #spamd #cybercrime #bottomfeeders #imaginaryfriends

331133 is a truly bizarre number in this context (https://nxdomain.no/~peter/traplist.shtml) also https://nxdomain.no/~peter/spammers_believe_in_300k_imaginary_friends.html or tracked with nicer formatting https://bsdly.blogspot.com/2022/09/the-things-spammers-believe-tale-of.html but will likely change (increase) soon #spamd #spamfighting #spamtraps #imaginaryfriends #openbsd