Comcast blocking PN

[#1]

Comcast appear to be blocking PN again.  Could someone have a look at this please?

Reporting-MTA: dns; pcl-ipout01.plus.net
Final-Recipient: @comcast.net
Action: failed
Status: 5.0.0 (permanent failure)
Diagnostic-Code: smtp; 5.4.7 - Delivery expired (message too old) 554-'imta28.westchester.pa.mail.comcast.net comcast 212.159.7.99 Comcast block for spam.  Please see http://help.comcast.net/content/faq/BL000000 ' (delivery attempts: 0)

[#2]

Best to raise a support ticket when this happens (although having said that you probably did!).
Is it still happening artmo?

[#3]

Yes I did Bob and you've asked Comcast to lift the block.  Haven't needed to use it since but will send a test message to see if i can get through now.  They take a while though to bounce back.

[#4]

Bob, just sent an email to Comcast and got a reply from my friend so looks like things have been sorted. Thank you.