On Wed, Jan 07, 2009 at 12:44:39PM -0500, Greg Troxel wrote: > > Besides the DDOS issue, there's a privacy issue, which is messy with > DNSBLs already. Nothing SA does should send network traffic to a place > controlled by the mail sender. Checking a DNSBL for which there's some > reason to believe they aren't underhanded is one thing, but fetching > stuff from a spammer's site, or enabling a backdoor delivery > confirmation is IMHO not ok.
I guess if someone wants such feature, it's simple to code. But I doubt it catches anything that you couldn't otherwise detect. ClamAV also has a silly MailFollowURLs option..
