Are we better off for having the CAN-SPAM law in effect? At best, marginally so. But no law could have stopped the real spam problem that inundates us today and promises to get ever-worse.
CAN-SPAM (Controlling the Assault of Non-Solicited Pornography and Marketing)
2003 was controversial from the start. I think it's fair to say that nobody thought
it would solve the spam problem, but many (such
as this guy
) thought it could help.
Has it solved the spam problem? No, of course not. Has it helped? Yes,
It has helped in two ways: First, there have been a few prosecutions under
the law, basically of high-profile spammers who were also being prosecuted
under other fraud-type offenses. CAN-SPAM is, in such cases, at least some
leverage for prosecutors. But that's a very small benefit.
The other big thing that CAN-SPAM did was to set rules for
businesses to follow in order to do mass-mailings
. These were the most
controversial part of CAN-SPAM because they were opt-out instead of opt-in.
This is why critics said, and continue to say, CAN-SPAM "legalized
spam." But it did also require that those businesses make opt-out
provisions explicit in communications and to observe them, and this is an
improvement over the past.
Many will say (and yes, I have seen your complaints) that some businesses
don't follow through on these opt-out requests, but the real spam problem was
never this sort of business. The spammers sending the overwhelming majority of
the spam out there are not even pretending to comply with these laws.
So what can be done? I spoke with Greg Shapiro, CTO
, the prototypical mail
server company. He advocates for sender authentication and domain reputation
checks. I've been on this bandwagon for years, although my recent
realization that Webmail-based spam undermines it
has dimmed my enthusiasm,
and Shapiro acknowledges these problems. They need to be addressed through
proper network etiquette, which means that ISPs and other mail providers,
including Webmail providers, need to rigorously monitor outbound mail through
filters and network pattern analysis to look for spamming behavior before it
leaves their network.
These aren't perfect measures by any means, not that I have better
suggestions. In fact, I assume that Webmail providers are doing what they can
now to enforce "network etiquette" within the bounds of cost and
other considerations. The real problem they have is that their CAPTCHA tests
for account signup can be hacked and scripted so that attackers can create
enough accounts to live within the bounds of network etiquette.
Years ago I
even toyed with the idea of replacing SMTP altogether
and dismissed the
idea as impossible, no matter how great the benefit. Now it seems that the benefit
wouldn't be so great after all. (Good thing they didn't listen to me ...)