Microsoft Tools Show Only ISPs Can Stop Mail Abuse

 
 
By Larry Seltzer  |  Posted 2005-05-27 Print this article Print
 
 
 
 
 
 
 

Opinion: The e-mail authentication standard may help Hotmail users, but probably not. Plus, a new Microsoft site will help outside admins, bulk mailers, ISPs and others to coordinate better with Hotmail.

It seems like forever since the great battles of the standards bodies last year when the effort to institutionalize SMTP authentication broke down. Since then, just as beforehand, there has been no serious work done in the standards community to address spam, mail worms and other abuse. The only option left has been for private industry to step in and try to fix the infrastructure of Internet e-mail. Theyre not doing it to be nice; theyre doing it because allowing e-mail to descend into even greater chaos than it now suffers would be contrary to their interests. Its not an ideal situation, but at least their interests generally coincide with ours.

Its in this spirit that Microsoft announced a series of measures Thursday, some for end users and some for the rest of the Internet community. Hotmail users will notice a new icon for each message indicating if the sender is authenticated based on the From: address and Sender ID data for the site. Unfortunately, much as I might like Sender ID, this is one of those technologies that isnt all that useful until its widely adopted. A positive confirmation isnt proof that the sender is beneficent, just that they are who they say they are.

For the near future Hotmail users can expect to see a large majority of their real mail with "Unknown Sender" icons next to them. There just arent a lot of domains out there with Sender ID records. In theory it should at least help users feel confidence in the ones that do, such as Microsoft themselves. For example, every now and then a mail worm (like Swen) pretends to be a patch mailed out by Microsoft and forges a From: address of support@microsoft.com or something similar. I remain to be convinced; will a user who would fall for a "patch" mailed out by Microsoft know how to interpret the Sender ID queue?

Click here to read why Larry Seltzer says in the fight against spam, we should no longer accept ISPs excuses. You can see Im pessimistic and cynical about users. Perhaps the industry consensus about SPF and Sender ID last year was right, and they werent all that compelling. They cant even work the way they are supposed to without elaborate reputation systems to determine whether you want to trust a sender, irrespective of the content of the message you are receiving.

There is also a site and a series of tools heavily inspired by AOLs Postmaster site. The main point of both sites is to help other heavy e-mail players, from "legitimate" bulk senders to ISPs to mail admins of large sites, have their legitimate mail get through to Hotmail, and have Hotmail not block those other sites mail.

This is more along the lines of what we need, although it too is depressing in that it shows that what we need is a lot of hard work, mostly by ISPs. They need to do a lot of things they clearly dont want to do, such as responding to abuse complaints, shutting down abused ports, shutting down customers who are abusing their own and other ISPs customers, and in general paying attention to what is going on on their networks.

The industry is developing products to assist ISPs in these goals. Look at companies like MX Logic, Port25 Solutions and Senderbase. Once established solutions are available and easier to implement I hope ISPs wont drag their feet like they do now.

How bad are some ISPs? Look at the "Top Senders by Domain: Last 24 hours" table on the Senderbase home page. As I read it the top entry is Comcast.net indicating that it sent 403.2 million messages in the last 24 hours. Consider that Comcast is far from the largest ISP out there. Obviously a massive percentage of that mail is spam, and Id bet almost all of it is from zombie spam bots on their network. Conversely, looking at the amount of mail coming out of aol.com its clear they are not a major source of spam.

The FTC is urging ISPs to crack down on spam zombies. Click here to read more. Comcast needs to do the sorts of things that AOL and Microsoft are doing, but that doesnt seem to be its style, and I is the more typical case. If the Comcasts and Road Runners and Verizons of the world dont clean up their networks, its hard to see how the overall situation will improve.

Security Center Editor Larry Seltzer has worked in and written about the computer industry since 1983. Check out eWEEK.coms for the latest security news, reviews and analysis. And for insights on security coverage around the Web, take a look at eWEEK.com Security Center Editor Larry Seltzers Weblog. More from Larry Seltzer
 
 
 
 
Larry Seltzer has been writing software for and English about computers ever since—,much to his own amazement—,he graduated from the University of Pennsylvania in 1983.

He was one of the authors of NPL and NPL-R, fourth-generation languages for microcomputers by the now-defunct DeskTop Software Corporation. (Larry is sad to find absolutely no hits on any of these +products on Google.) His work at Desktop Software included programming the UCSD p-System, a virtual machine-based operating system with portable binaries that pre-dated Java by more than 10 years.

For several years, he wrote corporate software for Mathematica Policy Research (they're still in business!) and Chase Econometrics (not so lucky) before being forcibly thrown into the consulting market. He bummed around the Philadelphia consulting and contract-programming scenes for a year or two before taking a job at NSTL (National Software Testing Labs) developing product tests and managing contract testing for the computer industry, governments and publication.

In 1991 Larry moved to Massachusetts to become Technical Director of PC Week Labs (now eWeek Labs). He moved within Ziff Davis to New York in 1994 to run testing at Windows Sources. In 1995, he became Technical Director for Internet product testing at PC Magazine and stayed there till 1998.

Since then, he has been writing for numerous other publications, including Fortune Small Business, Windows 2000 Magazine (now Windows and .NET Magazine), ZDNet and Sam Whitmore's Media Survey.
 
 
 
 
 
 
 

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