How Do I Get My IP Block Removed?
Comcast Block Removal
If you are a Comcast customer having difficulty sending to another domain, this unblock will not help. Instead please contact
Comcast's Customer Security Assurance group.
This form will only assist in unblocking if the error you received contains the error code BL004. For all other blocks, please follow the link contained within the error for more information.
Typically it will take less than 30 minutes for the block to be lifted.
Please
click here to be taken to the RBL removal form or visit
http://www.comcastsupport.com/rbl.