Static IP in blocklist due to abuse by other IPs

@Comcast_Sheila​ not sure how to do this, nobody matching Xfinity Support shows up when I try searching. A ComcastBiz_Support entry does show up.

Not to worry, thank you for letting us know. We got you covered. :)

 Please send us a direct message using the steps below with your full name, business name, full address, and phone number. By clicking the "message" icon in the upper right page of our forum page. Once you click on that, input our shared handle (Comcast Business) to send us a private message.

• Click "Sign In" if necessary
• Click the "Direct Message" icon in the top right corner
• Click the "New message" (pencil and paper) icon
• The "To:" line prompts you to "Type the name of a person". Instead, type "Comcast Business" there
• - As you are typing a drop-down list appears. Select "Comcast Business" from that list
• - An "Comcast Business" graphic replaces the "To:" line
• Type your message in the text area near the bottom of the window • Press Enter to send it

You can find the static IP information and details using the steps outlined at the following link: 
https://business.comcast.com/support/article/internet/comcast-business-internet-view-your-static-ip-address
From here, you may be able to determine perhaps why they are listed there. 

Hello, @SMS. Thank you for reaching out over Comcast Business Forums, you have contacted the right place in regard to the black listing. We do have a great site were you can report issues with not being able to send e-mail to comcast.net: https://spa.xfinity.com/ > Report > then in the drop down options you would want to select the I'm not able to send email option. 

Here we go again.... The entire Comcast Business network (96.64.0.0/11) is listed on UCEPROTECTL2 and other ISPs are blocking our legit email even though our mail server IP has never been individually listed.

Our employees are not getting important messages sent through the SMTP to SMS gateway, and this is alienating numerous customers as orders are not delivered.

I do not recommend Comcast Business for any business customer that needs reliable email delivery. Comcast ignores spam/abuse reports and allows spammers to continue sending UCE through the Comcast network. Innocent customers are then punished when other ISPs block the entire Comcast class B subnet,as is the case now. And since the spam level is increasing, there is no end to the blocking in sight (see below).

@Comcast_JustinC: The reporting URL you posted above (https://spa.xfinity.com/ ) is useless in this case. The drop down menu does not have an option to report delivery problems SENDING mail from a Comcast IP, only for sending mail TO a Comcast.net customer.

Emails to abuse@comcast.net go unanswered, as more and more spam is being allowed.

Don't use Comcast for your business internet if you don't want your company's email to be associated with spammers, and blocked accordingly.

Reputation of ASN 7922 | COMCAST-7922, US

AS	Status	Spamscore	Provider has total IP's	Level 1 listed abusers within the last 7 days	Impacts from Level 1	Level 3 Escalation limit by Impacts	Optional express delisting WARNING! PROBLEM MUST BE FIXED FIRST TO PREVENT NEW LISTINGS
7922	WARNING High Listingrisk	27.4	53401344	289	14628	26701	Not available

 DETAILS ABOUT ALL ABUSER IP's LISTED IN LEVEL 1 AND THEIR IMPACTS CAN BE FOUND HERE! 

Link of this Query: http://www.uceprotect.net/en/rblcheck.php?ipr=96.64.0.0

@user_99df7e Thank you for reaching out on our Comcast Business Forums. I can understand the frustration if you have a blocked IP. What we recommend is to call our Customer Security Assurance team at 1-888-565-4329 for assistance.