As I’ve said before, I can usually tell when some ISP changes their filtering algorithm because I start getting tons and tons of calls about delivery problems at that ISP. This past month it’s been Gmail. There have been two symptoms I’ve been hearing about. One is an increase in bulk folder delivery for mail that previously was reliably hitting the inbox. The other is a bit...
Today’s been chock full of phone calls and dealing with clients, but I did happen to notice a bunch of people having small herds of cows because Spamhaus listed www.gmail.com on the SBL. “SPAMHAUS BLOCKS GOOGLE!!!” the headlines scream. My own opinion is that Google doesn’t do enough to police their network and their users, and that a SBL listing isn’t exactly a...
Most ISP feedback loops require you to demonstrate that you’re really responsible for your domain before they’ll start forwarding reports to you. The usual way that works is pretty similar to a closed-loop opt-in signup for a mailing list – the ISP sends an email with a link in it to the abuse@ and postmaster@ aliases for your domain, and you need to click the link in one or...
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