I'm sure this has been discussed before, but I don't think spamdyke will block empty senders (I haven't dug through the code to verify this though). Empty sender addresses are used by many mail servers to send bounce messages; blocking them would likely have some bad side effects.
For what you're trying to do, take a look at the header blacklist feature. You should be able to block those spam messages with: From:*.sicotti.nl* -- Sam Clippinger > On Feb 13, 2021, at 4:28 PM, Shane Bywater via spamdyke-users > <spamdyke-users@spamdyke.org> wrote: > > Hi, > > Recently I started receiving spam from addresses that show up in Outlook mail > client as info.qogo...@nwnsoyuqem.sicotti.nl or some other subdomain of > sicotti.nl. I thought I could block these messages by adding @.sicotti.nl to > the sender-blacklist-file but that didn't work. Upon further investigation > in my server logs I see that the "from=" parameter shows nothing (ie. blank) > as can be seen below. I'm guessing that is why my blocking attempt is > failing. How do I block emails with no "from=" information? > > Feb 13 16:42:12 ns3 /var/qmail/bin/relaylock[2062]: /var/qmail/bin/relaylock: > mail from 52.252.134.30:43487 (adsfsdf-i25p.northcentralus.cloudapp.azure.com) > Feb 13 16:42:13 ns3 qmail-queue-handlers[2065]: Handlers Filter before-queue > for qmail started ... > Feb 13 16:42:13 ns3 qmail-queue-handlers[2065]: from= > Feb 13 16:42:13 ns3 qmail-queue-handlers[2065]: to=u...@domain.ca > Feb 13 16:42:13 ns3 qmail-queue-handlers[2065]: handlers_stderr: > INFO:__main__:No SMTP AUTH and not running in sendmail context (incoming or > unrestricted outgoing mail). SKIP message. > Feb 13 16:42:13 ns3 qmail-queue-handlers[2065]: handlers_stderr: SKIP > Feb 13 16:42:13 ns3 qmail-queue-handlers[2065]: SKIP during call 'limit-out' > handler > Feb 13 16:42:13 ns3 check-quota[2071]: Starting the check-quota filter... > Feb 13 16:42:13 ns3 qmail-queue-handlers[2065]: handlers_stderr: SKIP > Feb 13 16:42:13 ns3 qmail-queue-handlers[2065]: SKIP during call > 'check-quota' handler > Feb 13 16:42:13 ns3 spf[2072]: Starting the spf filter... > Feb 13 16:42:13 ns3 spf[2072]: SPF status: PASS > Feb 13 16:42:13 ns3 qmail-queue-handlers[2065]: handlers_stderr: PASS > Feb 13 16:42:13 ns3 qmail-queue-handlers[2065]: PASS during call 'spf' handler > Feb 13 16:42:13 ns3 qmail-queue-handlers[2065]: starter: submitter[2073] > exited normally > Feb 13 16:42:13 ns3 qmail: 1613252533.502273 new msg 8150512 > Feb 13 16:42:13 ns3 qmail: 1613252533.502305 info msg 8150512: bytes 1852 > from <> qp 2073 uid 2020 > Feb 13 16:42:13 ns3 spamdyke[2053]: ALLOWED from: (unknown) to: > u...@domain.ca origin_ip: 52.252.134.30 origin_rdns: > adsfsdf-i25p.northcentralus.cloudapp.azure.com auth: (unknown) encryption: > (none) reason: $ > > Regards, > Shane Bywater > > _______________________________________________ > spamdyke-users mailing list > spamdyke-users@spamdyke.org > https://spamdyke.org/mailman/listinfo/spamdyke-users
_______________________________________________ spamdyke-users mailing list spamdyke-users@spamdyke.org https://spamdyke.org/mailman/listinfo/spamdyke-users
