The spam is real. You can tune your own spamassassin-installation by adding these lines to local.cf:
#Custom Rule for SPAMCOP header SUBJECT_FW_NEWMESSAGE Subject =~ /(Fw: new message)/ describe SUBJECT_FW_NEWMESSAGE subject fw new message score SUBJECT_FW_NEWMESSAGE 10.0 I caught hundreds of these in my spam folder. Gunther > -----Ursprüngliche Nachricht----- > Von: NANOG [mailto:nanog-bounces+gstammw=gmx....@nanog.org] Im > Auftrag von anthony kasza > Gesendet: Sonntag, 25. Oktober 2015 05:14 > An: North American Network Operators Group > Betreff: Uptick in spam > > Has there been a recent uptick in crap sent to the list or is it just me? > Is there anything that we can do to filter these messages with junk links? > > -AK