With spamassassin-3.4.2_3 and spamass-milter-0.4.0_3 and perl5-5.28.2 running on FreeBSD 11.2 I am getting the following in the mail.log when postfix tries to feed a mail to spamass-milter. At least I think that's when it is.
May 21 23:20:56 mail spamd[22787]: spamd: error: Bad arg length for Socket::unpack_sockaddr_in, length is 28, should be 16 at /usr/local/lib/perl5/5.28/mach/Socket.pm line 848. May 21 23:20:56 mail spamd[22787]: , continuing at /usr/local/bin/spamd line 1419. The only other spamd log message at that time is: May 21 23:20:56 mail spamd[22522]: prefork: child states: II USER PID %CPU %MEM VSZ RSS TT STAT STARTED TIME COMMAND root 22522 0.0 1.8 69544 62248 - Ss 23:00 0:01.57 /usr/local/bin/perl -T -w /usr/local/bin/spamd -c -u spamd -H /var/spool/spamd -d -r /var/run/spamd/spamd.pid spamd 22787 0.0 1.8 69544 62672 - I 23:00 0:04.93 spamd child (perl) spamd 22916 0.0 1.8 69544 62328 - I 23:00 0:00.00 spamd child (perl) root 23949 0.0 0.1 14408 4564 - Ss 23:00 0:00.19 /usr/local/sbin/spamass-milter -f -p /var/run/spamass-milter.sock -u spamd -x -i 65.121.55.40/29 -i 73.14.161.160 -i 127.0.0.1 -- When this kiss is over it will start again But not be any different could be exactly the same It's hard to imagine that nothing at all Could be so exciting, could be this much fun
