Comcast Mail Admin

Apologies to the list for the noise, but if there's a clueful Comcast mail admin on list, can you please get in touch with me off list? My employer's network is having problems sending mail to your domain, and several attempts to clear it up using the "Blocked Provider Request Form" have failed (it looks like the comments I provided on the form aren't being read, as the link I provided to some of our log snippets showing the problem hasn't been hit). Thanks! - Peter Kristolaitis <http://www.comcastsupport.com/rbl>