It is pretty easy to relay your mail through the ISP's mail server.

I know, it is still annoying.

I'm actually surprised that you were able to send mail before the blocking started. Almost all the RBLs put residential cable and DSL blocks at the top of the lists for blocking.

Here's a little new s blurb with some good info links.

I'm sort of two minds about this. It's limiting what you can do with your network connection, so that's bad. But from a network engineering point of view, filtering at Comcast is a lot more efficient than making everyone else use RBL rules to block it and having the spam use up bandwidth all over the Internet.

My understanding of what comcast is doing is that they are only shutting off port 25 for customers who are using their machines to spam. I believe this is the right approach on comcast's part. I have not had outgoing port 25 blocked, and I presume it is because they detected no spam being sent out from here.

The problem is other ISP's who get over-zealous about it, and decide to reject any mail from all comcast addresses. That's just nuts.

If it keeps going this way, I guess I'll have to set up relay, or send it through hydrogen, or something.

Ridiculous and silly, but I guess that's just the way things are.

That was the first time I've posted in HTML here, I believe.

I'm glad your fanatical customer excellence people are on the job and making a difference in the quality of your XHTML output.