I have had a concurrent increase in spam getting through my own domain
address, which is really unusual. It's hosted by Network Solutions so a
totally different path than the SV group mail. It seems that this ilk of
spammers has come up with a new way through the security nets that,
hopefully, the folks at Symantec and others are already working on.
Interesting though; we've managed to block them for quite a while now~
Jill