Paranoia at Comcast over Spam (or is it a swipe at Microsoft?)
I live in France but have one or two friends who use Comcast as their ISP. My messages are blocked everytime I send them using Outlook Express but I have just discovered that the same identical message goes straight through unhindered if I use SFR messagerie (my own provider's system). It would seem that Spam has little or nothing to do with Comcast's denying the freedom of Internet usage to it's clients.Is this sort of interference legal in America?
I'm an email administrator at a different company and noticed comcast has been blocking valid emails from commercial domains. I'm not going to do anything about it, but tell the customer to get an email somewhere else, like google mail or yahoo. You can tell Comcast doesn't know what h*ll they're doing. They seem to be blocking different service ports as well.

I tried sending a valid message, so we added the dynamic address to comcast and now it's blocked again. Please check here:

IMTA22.westchester.pa.mail.comcast.net comcast 64.22.83.114 Comcast BL004 Blocked for spam. 

Some n00b at Comcast is setting up their mail. 

I ran into a problem of Comcast's outgoing mail server not sending my messages that contained images, and images of only a couple hundred kilobytes, so I had to resort to a different outgoing mail server. Comcast would appear to send the message without problem, but nothing arrived, so I also set up an automatic Bcc: return mailbox to monitor whether they actually transmitted my messages.

I'm not surprised... it's how monopolies behave.
Customers are driving the business. If they don't complain then a small minority will suffer. Vote with your money, and get rid of Comcast (if you can).
OK they can create programs that can actually identify speech patterns and also face recognition but they can't make an intelligent spam filter.
I'm confused.
Merry Christmas
Glenn
One way to get rid of spam would be ask "Cui bono?" Don't worry about who sent the spam, track down who profits from it! 

Cheap (insert product here)! Buy now! 

ISPs should track the seller, not the spammer. 

Notify the seller that ALL e-mail TO and FROM his domain will be blocked from their e-mail servers because someone is spamming their customers on behalf of his product. 

After a couple big ISPs do this the seller will discover that hiring a spammer will hurt his business, not help it.

My past experience with Comcast's E-mail was the spam filtering software was innefective and pointless. I've given up on ISP e-mail, and use several Yahoo e-mail accounts.

The spam filtering Yahoo provides with it's free account is far easier to manage and seems superior to anything I've used. 
Pony up some dosh and get even better control.
Comcast has been doing this for quite a while. My experience is that Comcast kept blocking one of our mail forwarding servers because it would forward marked-up spam along with good mail. They have a form on their Website which allows you to remove your IP address from their blocklist, but you can be relisted willy-nilly. Rinse, lather, repeat. I tried to talk to their support person, but he just told me "that't the way the software works" and that he couldn't offer any other suggestion than to continually go to their Website request removal.
I live in France but have one or two friends who use Comcast as their ISP. My messages are blocked everytime I send them using Outlook Express but I have just discovered that the same identical message goes straight through unhindered if I use SFR messagerie (my own provider's system). It would seem that Spam has little or nothing to do with Comcast's denying the freedom of Internet usage to it's clients.Is this sort of interference legal in America?
I'm an email administrator at a different company and noticed comcast has been blocking valid emails from commercial domains. I'm not going to do anything about it, but tell the customer to get an email somewhere else, like google mail or yahoo. You can tell Comcast doesn't know what h*ll they're doing. They seem to be blocking different service ports as well.

I tried sending a valid message, so we added the dynamic address to comcast and now it's blocked again. Please check here:

IMTA22.westchester.pa.mail.comcast.net comcast 64.22.83.114 Comcast BL004 Blocked for spam. 

Some n00b at Comcast is setting up their mail. 

A friend of mine on Comcast's network is unable to reach "www.theinquirer.net" from his workstations. Could that be because of this article?
I ran into a problem of Comcast's outgoing mail server not sending my messages that contained images, and images of only a couple hundred kilobytes, so I had to resort to a different outgoing mail server. Comcast would appear to send the message without problem, but nothing arrived, so I also set up an automatic Bcc: return mailbox to monitor whether they actually transmitted my messages.

I'm not surprised... it's how monopolies behave.
Customers are driving the business. If they don't complain then a small minority will suffer. Vote with your money, and get rid of Comcast (if you can).
OK they can create programs that can actually identify speech patterns and also face recognition but they can't make an intelligent spam filter.
I'm confused.
Merry Christmas
Glenn
Been with Comcast for 3 yrs. Get zero spam. If they've blocked other stuff, I haven't missed it.
One way to get rid of spam would be ask "Cui bono?" Don't worry about who sent the spam, track down who profits from it! 

Cheap (insert product here)! Buy now! 

ISPs should track the seller, not the spammer. 

Notify the seller that ALL e-mail TO and FROM his domain will be blocked from their e-mail servers because someone is spamming their customers on behalf of his product. 

After a couple big ISPs do this the seller will discover that hiring a spammer will hurt his business, not help it.

It's Comcastic!
My past experience with Comcast's E-mail was the spam filtering software was innefective and pointless. I've given up on ISP e-mail, and use several Yahoo e-mail accounts.

The spam filtering Yahoo provides with it's free account is far easier to manage and seems superior to anything I've used. 
Pony up some dosh and get even better control.
Comcast has been doing this for quite a while. My experience is that Comcast kept blocking one of our mail forwarding servers because it would forward marked-up spam along with good mail. They have a form on their Website which allows you to remove your IP address from their blocklist, but you can be relisted willy-nilly. Rinse, lather, repeat. I tried to talk to their support person, but he just told me "that't the way the software works" and that he couldn't offer any other suggestion than to continually go to their Website request removal.
Good good, the more comcast does to expose their business and thus kill their company the better for the consumer in the long run.