So DANE/TLSA records are incompatible with a spamd tarpit unless it is made to support STARTSSL. That sucks. I've recently set up TLSA records for my mail servers, but I also run a spamd tarpit that doesn't support STARTSSL, so I can't receive mail from non-whitelisted mail servers that use DANE.
May 23, 2025 at 11:56 PM
So DANE/TLSA records are incompatible with a spamd tarpit unless it is made to support STARTSSL. That sucks. I've recently set up TLSA records for my mail servers, but I also run a spamd tarpit that doesn't support STARTSSL, so I can't receive mail from non-whitelisted mail servers that use DANE.
The latest "Lazy reading" by Dragonfly Digest www.dragonflydigest.com has "Eighteen years of Greytrapping" nxdomain.no/~peter/eight... featured. (Later this year it wil be nineteen years :) and updates will come) #spamd #spam #openbsd #antispam #greytrapping #greylisting #cybercrime
DragonFly BSD Digest – A running description of activity related to DragonFly BSD.
www.dragonflydigest.com
January 18, 2026 at 2:21 PM
The latest "Lazy reading" by Dragonfly Digest www.dragonflydigest.com has "Eighteen years of Greytrapping" nxdomain.no/~peter/eight... featured. (Later this year it wil be nineteen years :) and updates will come) #spamd #spam #openbsd #antispam #greytrapping #greylisting #cybercrime
meu deus imagina se todos esses spamd que eu recebo são na verdade vagas de emprego e eu nunca atendo 😭😭😭😭 fiquei preocupado agora
August 6, 2024 at 7:24 PM
meu deus imagina se todos esses spamd que eu recebo são na verdade vagas de emprego e eu nunca atendo 😭😭😭😭 fiquei preocupado agora
Friends, is this nxdomain.no/~peter/20260... what a successful campaign looks like?
(also see nxdomain.no/~peter/eight... or for that matter nostarch.com/book-of-pf-4e) @nostarchpress.bsky.social #greyptrapping #spam #spamd #pf #packetfilter #greylisting #email #cybercrime #marketing #scams
(also see nxdomain.no/~peter/eight... or for that matter nostarch.com/book-of-pf-4e) @nostarchpress.bsky.social #greyptrapping #spam #spamd #pf #packetfilter #greylisting #email #cybercrime #marketing #scams
nxdomain.no
February 24, 2026 at 9:12 AM
Friends, is this nxdomain.no/~peter/20260... what a successful campaign looks like?
(also see nxdomain.no/~peter/eight... or for that matter nostarch.com/book-of-pf-4e) @nostarchpress.bsky.social #greyptrapping #spam #spamd #pf #packetfilter #greylisting #email #cybercrime #marketing #scams
(also see nxdomain.no/~peter/eight... or for that matter nostarch.com/book-of-pf-4e) @nostarchpress.bsky.social #greyptrapping #spam #spamd #pf #packetfilter #greylisting #email #cybercrime #marketing #scams
The update you have been waiting for:
"Eighteen Years of Greytrapping - Is the Weirdness Finally Paying Off?" nxdomain.no/~peter/eight... (tracked bsdly.blogspot.com/2025/08/eigh...)
now has the complete 2025 data. #openbsd #spamd #greytrapping #spam #antispam #cybercrime #spamtraps #blocklists
"Eighteen Years of Greytrapping - Is the Weirdness Finally Paying Off?" nxdomain.no/~peter/eight... (tracked bsdly.blogspot.com/2025/08/eigh...)
now has the complete 2025 data. #openbsd #spamd #greytrapping #spam #antispam #cybercrime #spamtraps #blocklists
Eighteen Years of Greytrapping - Is the Weirdness Finally Paying Off?
nxdomain.no
January 1, 2026 at 4:57 PM
The update you have been waiting for:
"Eighteen Years of Greytrapping - Is the Weirdness Finally Paying Off?" nxdomain.no/~peter/eight... (tracked bsdly.blogspot.com/2025/08/eigh...)
now has the complete 2025 data. #openbsd #spamd #greytrapping #spam #antispam #cybercrime #spamtraps #blocklists
"Eighteen Years of Greytrapping - Is the Weirdness Finally Paying Off?" nxdomain.no/~peter/eight... (tracked bsdly.blogspot.com/2025/08/eigh...)
now has the complete 2025 data. #openbsd #spamd #greytrapping #spam #antispam #cybercrime #spamtraps #blocklists
Hm. Publishing "Eighteen years of greytrapping ..." retrospective nxdomain.no/~peter/eight... (bsdly.blogspot.com/2025/08/eigh...) has led to an uptick in digital archaeology. People are fetching the archived lists! #greytrapping #spamd #openbsd #pf #packetfiltering #antispam #cybercrime #security
Eighteen Years of Greytrapping - Is the Weirdness Finally Paying Off?
nxdomain.no
August 21, 2025 at 7:23 AM
Hm. Publishing "Eighteen years of greytrapping ..." retrospective nxdomain.no/~peter/eight... (bsdly.blogspot.com/2025/08/eigh...) has led to an uptick in digital archaeology. People are fetching the archived lists! #greytrapping #spamd #openbsd #pf #packetfiltering #antispam #cybercrime #security
had to wrangle some stragglers who managed to get through spamd on our backup MX! fired. out of the cannon. into the sun.
January 27, 2026 at 12:03 AM
had to wrangle some stragglers who managed to get through spamd on our backup MX! fired. out of the cannon. into the sun.
OpenBSD spamd with greylisting, spamassassin + client-side, strict DKIM/SPF policies, and various other blacklists.
September 8, 2024 at 6:39 PM
OpenBSD spamd with greylisting, spamassassin + client-side, strict DKIM/SPF policies, and various other blacklists.
Eighteen Years of Greytrapping Retrospective Published www.undeadly.org/cgi?action=a... #openbsd #spamd #greytrapping #antispam #security #cybercrime #spamtraps
Eighteen Years of Greytrapping Retrospective Published
www.undeadly.org
August 12, 2025 at 6:45 AM
Eighteen Years of Greytrapping Retrospective Published www.undeadly.org/cgi?action=a... #openbsd #spamd #greytrapping #antispam #security #cybercrime #spamtraps
Hey! My "Eighteen Years of Greytrapping - Is the Weirdness Finally Paying Off?" bsdly.blogspot.com/2025/08/eigh... (nxdomain.no/~peter/eight...) is on @vermaden's Valuable news vermaden.wordpress.com/2025/08/18/v... #openbsd #spamd #greytrapping #freebsd #valueablenews
Eighteen Years of Greytrapping - Is the Weirdness Finally Paying Off?
© 2025 Peter N. M. Hansteen With the imaginary friends , also known as spamtraps , now more numerous than the inhabitants of their vir...
bsdly.blogspot.com
August 18, 2025 at 8:43 AM
Hey! My "Eighteen Years of Greytrapping - Is the Weirdness Finally Paying Off?" bsdly.blogspot.com/2025/08/eigh... (nxdomain.no/~peter/eight...) is on @vermaden's Valuable news vermaden.wordpress.com/2025/08/18/v... #openbsd #spamd #greytrapping #freebsd #valueablenews
Whew. I think I finally got spamass-milter talking to spamd. At least, there's no errors in the logs and my test emails arrive in a reasonable time frame.
Now just to wait for more spam.
#postfix #spamassassin
Now just to wait for more spam.
#postfix #spamassassin
July 22, 2025 at 12:38 AM
Whew. I think I finally got spamass-milter talking to spamd. At least, there's no errors in the logs and my test emails arrive in a reasonable time frame.
Now just to wait for more spam.
#postfix #spamassassin
Now just to wait for more spam.
#postfix #spamassassin
The Rest Is Trash nxdomain.no/~peter/the_r... (tracked bsdly.blogspot.com/2026/02/the-...) following up on #greytrapping, updating the 18 years piece nxdomain.no/~peter/eight... #openbsd #spamd #greytrappng #greylisting #antispam #cybercrime #networking # spam
The Rest Is Trash
nxdomain.no
February 1, 2026 at 11:43 AM
The Rest Is Trash nxdomain.no/~peter/the_r... (tracked bsdly.blogspot.com/2026/02/the-...) following up on #greytrapping, updating the 18 years piece nxdomain.no/~peter/eight... #openbsd #spamd #greytrappng #greylisting #antispam #cybercrime #networking # spam
"The Rest Is Trash"
We are now halfway through the nineteenth year of greytrapping, still tracking and collecting from the wealth of imbecility out there
nxdomain.no/~peter/the_r... bsdly.blogspot.com/2026/02/the-... #spamd #greytrapping #greylisting #openbsd #freebsd #spam #antispam #cybercrime
We are now halfway through the nineteenth year of greytrapping, still tracking and collecting from the wealth of imbecility out there
nxdomain.no/~peter/the_r... bsdly.blogspot.com/2026/02/the-... #spamd #greytrapping #greylisting #openbsd #freebsd #spam #antispam #cybercrime
The Rest Is Trash
nxdomain.no
February 7, 2026 at 11:57 AM
"The Rest Is Trash"
We are now halfway through the nineteenth year of greytrapping, still tracking and collecting from the wealth of imbecility out there
nxdomain.no/~peter/the_r... bsdly.blogspot.com/2026/02/the-... #spamd #greytrapping #greylisting #openbsd #freebsd #spam #antispam #cybercrime
We are now halfway through the nineteenth year of greytrapping, still tracking and collecting from the wealth of imbecility out there
nxdomain.no/~peter/the_r... bsdly.blogspot.com/2026/02/the-... #spamd #greytrapping #greylisting #openbsd #freebsd #spam #antispam #cybercrime
Reprising for the midweek crowd:
The Rest Is Trash nxdomain.no/~peter/the_r... (tracked bsdly.blogspot.com/2026/02/the-...) following up on #greytrapping, updating the 18 years piece nxdomain.no/~peter/eight... #openbsd #spamd #greytrappng #greylisting #antispam #cybercrime #networking #spam
The Rest Is Trash nxdomain.no/~peter/the_r... (tracked bsdly.blogspot.com/2026/02/the-...) following up on #greytrapping, updating the 18 years piece nxdomain.no/~peter/eight... #openbsd #spamd #greytrappng #greylisting #antispam #cybercrime #networking #spam
The Rest Is Trash
nxdomain.no
February 4, 2026 at 6:42 PM
Reprising for the midweek crowd:
The Rest Is Trash nxdomain.no/~peter/the_r... (tracked bsdly.blogspot.com/2026/02/the-...) following up on #greytrapping, updating the 18 years piece nxdomain.no/~peter/eight... #openbsd #spamd #greytrappng #greylisting #antispam #cybercrime #networking #spam
The Rest Is Trash nxdomain.no/~peter/the_r... (tracked bsdly.blogspot.com/2026/02/the-...) following up on #greytrapping, updating the 18 years piece nxdomain.no/~peter/eight... #openbsd #spamd #greytrappng #greylisting #antispam #cybercrime #networking #spam
Eighteen years of greytrapping (nxdomain.no/~peter/eight... or tracked bsdly.blogspot.com/2025/08/eigh... has numbers and graphs refreshed as of end of July (now actually 19 years).
#spam #antispam #spamd #openbsd #greylisting #greytrapping #security #cybercrime #cybersecurity #smtp #email
#spam #antispam #spamd #openbsd #greylisting #greytrapping #security #cybercrime #cybersecurity #smtp #email
Eighteen Years of Greytrapping - Is the Weirdness Finally Paying Off?
nxdomain.no
August 2, 2026 at 11:11 AM
Eighteen years of greytrapping (nxdomain.no/~peter/eight... or tracked bsdly.blogspot.com/2025/08/eigh... has numbers and graphs refreshed as of end of July (now actually 19 years).
#spam #antispam #spamd #openbsd #greylisting #greytrapping #security #cybercrime #cybersecurity #smtp #email
#spam #antispam #spamd #openbsd #greylisting #greytrapping #security #cybercrime #cybersecurity #smtp #email
Possibly not blogworthy, but: One puzzling side effect of running greytrapping (as in nxdomain.no/~peter/eight...) is seeing password guessers using obviously generated gibberish local parts (see nxdomain.no/~peter/shoul...). #greytrapping #passwordguessing #passwordgroping #spamd #ssh #pop3gropers
Eighteen Years of Greytrapping - Is the Weirdness Finally Paying Off?
nxdomain.no
December 24, 2025 at 1:05 PM
Possibly not blogworthy, but: One puzzling side effect of running greytrapping (as in nxdomain.no/~peter/eight...) is seeing password guessers using obviously generated gibberish local parts (see nxdomain.no/~peter/shoul...). #greytrapping #passwordguessing #passwordgroping #spamd #ssh #pop3gropers
Heh. Looks like Why 451 is Good for You - Greylisting Perspectives From the Early Noughties nxdomain.no/~peter/why_4... (tracked bsdly.blogspot.com/2025/12/why-...) hit hackernews: news.ycombinator.com/item?id=4641...
#greylisting #greytrapping #spam #spamtrapping #antispam #spamd #openbsd #smtp
#greylisting #greytrapping #spam #spamtrapping #antispam #spamd #openbsd #smtp
Why 451 is Good for You - Greylisting Perspectives From the Early Noughties
nxdomain.no
January 3, 2026 at 12:42 PM
Heh. Looks like Why 451 is Good for You - Greylisting Perspectives From the Early Noughties nxdomain.no/~peter/why_4... (tracked bsdly.blogspot.com/2025/12/why-...) hit hackernews: news.ycombinator.com/item?id=4641...
#greylisting #greytrapping #spam #spamtrapping #antispam #spamd #openbsd #smtp
#greylisting #greytrapping #spam #spamtrapping #antispam #spamd #openbsd #smtp
An update on #green #cybercrime #prevention: "Harvesting the Noise While it's Fresh, Revisited" nxdomain.no/~peter/harve... (or bsdly.blogspot.com/2022/12/that...) updated: harvesting even more useful data from #openbsd #spamd log noise.
#antispam #greytrapping #greencomputing #spam #email #smtp
#antispam #greytrapping #greencomputing #spam #email #smtp
That grumpy BSD guy: Harvesting the Noise While it's Fresh, Revisited
nxdomain.no
January 12, 2025 at 1:34 PM
An update on #green #cybercrime #prevention: "Harvesting the Noise While it's Fresh, Revisited" nxdomain.no/~peter/harve... (or bsdly.blogspot.com/2022/12/that...) updated: harvesting even more useful data from #openbsd #spamd log noise.
#antispam #greytrapping #greencomputing #spam #email #smtp
#antispam #greytrapping #greencomputing #spam #email #smtp
"Oh yes, you signed up for this. You did. Honest." https://nxdomain.no/~peter/oh_yes_you_signed_up_for_this_2009.html A linkedin post (linked within) reminded me of this post, added here, almost pristine
#greytrapping #spam #countermeasures #email #scams #spamd "well poisoning #cybercrime
#greytrapping #spam #countermeasures #email #scams #spamd "well poisoning #cybercrime
Oh yes, you signed up for this. You did. Honest.
nxdomain.no
July 25, 2025 at 6:30 AM
"Oh yes, you signed up for this. You did. Honest." https://nxdomain.no/~peter/oh_yes_you_signed_up_for_this_2009.html A linkedin post (linked within) reminded me of this post, added here, almost pristine
#greytrapping #spam #countermeasures #email #scams #spamd "well poisoning #cybercrime
#greytrapping #spam #countermeasures #email #scams #spamd "well poisoning #cybercrime
"Oh yes, you signed up for this. You did. Honest." nxdomain.no/~peter/oh_ye... A linkedin post by @paulvixie.bsky.social (linked within) reminded me of this post, so added here, almost pristine
#greytrapping #spam #countermeasures #email #scams #spamd #wellpoisoning #cybercrime
#greytrapping #spam #countermeasures #email #scams #spamd #wellpoisoning #cybercrime
Oh yes, you signed up for this. You did. Honest.
nxdomain.no
July 25, 2025 at 6:32 AM
"Oh yes, you signed up for this. You did. Honest." nxdomain.no/~peter/oh_ye... A linkedin post by @paulvixie.bsky.social (linked within) reminded me of this post, so added here, almost pristine
#greytrapping #spam #countermeasures #email #scams #spamd #wellpoisoning #cybercrime
#greytrapping #spam #countermeasures #email #scams #spamd #wellpoisoning #cybercrime
Is SPF Simply Too Hard For Application Developers?
Sender Policy Framework (SPF) is unloved by some, because it conflicts with established SMTP email use cases. But is it also just too hard? nxdomain.no/~peter/is_sp...
(2016 but still holds) #smtp #spf #mail #spam #antispam #security #openbsd #spamd
Sender Policy Framework (SPF) is unloved by some, because it conflicts with established SMTP email use cases. But is it also just too hard? nxdomain.no/~peter/is_sp...
(2016 but still holds) #smtp #spf #mail #spam #antispam #security #openbsd #spamd
Is SPF Simply Too Hard For Application Developers?
nxdomain.no
January 22, 2025 at 10:04 PM
"Maintaining A Publicly Available Blacklist - Mechanisms And Principles" (also bsdly.blogspot.com/2013/04/main...). TL;DR: blocklisting is a kind of public shaming, be sure your process is verifiable+transparent.
#blocklists #spamtraps #antispam #smtp #spamd #openbsd #freebsd #security #cybercrime
#blocklists #spamtraps #antispam #smtp #spamd #openbsd #freebsd #security #cybercrime
Maintaining A Publicly Available Blacklist - Mechanisms And Principles
When you publicly assert that somebody sent spam, you need to ensure that your data is accurate . Your process needs to be simple and veri...
bsdly.blogspot.com
August 2, 2025 at 11:28 AM
"Maintaining A Publicly Available Blacklist - Mechanisms And Principles" (also bsdly.blogspot.com/2013/04/main...). TL;DR: blocklisting is a kind of public shaming, be sure your process is verifiable+transparent.
#blocklists #spamtraps #antispam #smtp #spamd #openbsd #freebsd #security #cybercrime
#blocklists #spamtraps #antispam #smtp #spamd #openbsd #freebsd #security #cybercrime
