Comcast does not let business DHCP customers send email
Let's talk about PBL1523068. If you Comcast business and pull a DHCP IP address from their 22.214.171.124/12 block, there is a VERY high chance that any email you send via YOUR IP address will never reach its destination. This is because Comcast has self-imposed a Policy Block List on all IP addresses in this range. Any receiving server that checks email sent from your IP this range against the PBL will block the email preventing it from being received by your recipient.
This is absolutely redicious, and as far as I can tell, Comcast is violating the terms of our agreement. Can ANYONE from Comcast Business explain this?
The only explanation I can think of is that this a racket to get you to switch to a static IP address, which benefits them financially as you're required to lease their hardware and incur an extra charge for the lease.