On 27.08.2024 at 20:37 Robert Giles via mailop wrote: > On the topic of free services that Google provides (with no support or abuse > contact whatsoever), has anyone else noticed an uptick in Google Groups spam > lately? > > I'm wondering what SpamAssassin rule to boost, but it seems like this > operator has mostly covered their bases? KAM_INFOUSMEBIZ might be worth > boosting.
We have seen an increase of spam and phishing emails from Google Groups since 21.08. It seems the spammers are adding large amounts of collected addresses to groups and then sending their spam messages to the group address. While the spam itself is nothing new, the actual problem follows when some involuntary members of those groups have automatic replies enabled and reply to the group address, which in turn trigger more auto replies from other members... While it's possible to catch the initial spam message, those automatic replies do not contain any spammy content (as long as they don't include a full quote of the original message). The only ways to block them which I have come up with is to either create a custom script that adds the return path domain to a blocklist as soon as a spam message from Google Groups has been received, to block all further replies to this message, or to simply block ALL messages from Google Groups and give your users an option to disable this filter for themselves if they actually participate in Google Groups. -- BR Oliver ________________________________ dmTECH GmbH Am dm-Platz 1, 76227 Karlsruhe * Postfach 10 02 34, 76232 Karlsruhe Telefon 0721 5592-2500 Telefax 0721 5592-2777 dmt...@dm.de<mailto:dmt...@dm.de> * www.dmTECH.de<http://www.dmtech.de> GmbH: Sitz Karlsruhe, Registergericht Mannheim, HRB 104927 Geschäftsführer: Christoph Werner, Martin Dallmeier, Roman Melcher ________________________________ Datenschutzrechtliche Informationen Wenn Sie mit uns in Kontakt treten, beispielsweise wenn Sie an unser ServiceCenter Fragen haben, bei uns einkaufen oder unser dialogicum in Karlsruhe besuchen, mit uns in einer geschäftlichen Verbindung stehen oder sich bei uns bewerben, verarbeiten wir personenbezogene Daten. Informationen unter anderem zu den konkreten Datenverarbeitungen, Löschfristen, Ihren Rechten sowie die Kontaktdaten unserer Datenschutzbeauftragten finden Sie hier<https://www.dm.de/datenschutzerklaerung-kommunikation-mit-externen-493832>. _______________________________________________ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop
