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Support XFINITY Internet Determine Your Blocked IP Address

Introduction

Find your blocked IP address in the error message when sending an email.

An Example Is Illustrated Here:

Text reading:"550.12.34.56.78 blocked by . . .  " and a note that your blocked IP address would be listed here after the 550 code and before the word "blocked."  

Please see our BL000000 error code sheet for information on how to get the block removed. 

Find this article at:

http://customer.comcast.com/help-and-support/internet/determine-blocked-ip-address/