> Probably hit by a bug in NetAddr::IP, see: > > https://issues.apache.org/SpamAssassin/show_bug.cgi?id=6681 > > Upgrade it to NetAddr-IP-4.055 or downgrade to 4.048.
Bingo! I upgraded to 4.056 and no more problem! Apparently there'a a workaround, too, mentioned in comment 20 above: 4.053 Wed Oct 26 08:52:34 PDT 2011 In Lite.pm v1.36 fix bug #71925. A a sub-varient of #62521 that showed up only for short notation for IPv4. i.e. 127/n, 127.0/n, 127.0.0/n but not 127.0.0.0/n I haven't tested that, however. Thank you all so much for the instant response! (And yes, I'm running unstable. *Someone* has to go first and find the bugs! Actually, Debian "unstable" is pretty darn stable. The bleeding edge is "experimental".)