Blacklisted Public IP Received From Comcast
Hi Mac Geeks,
This isn't actually a Mac-specific question, but wondered if someone here knew a way to resolve. I got a call today from someone whose public IP address (assigned to them via DHCP from Comcast) has been blacklisted. Meaning he can't send or receive email when sending from his home network. He has spent hours on the phone with Comcast seeing if they can assign him a new, non-blacklisted address, however they weren't able to do so. Is there a way to resolve? His public IP is 22.214.171.124, and if you check it out on MX Toolbox you will see he is indeed blacklisted. Thoughts or suggestions?
For the short term, would a VPN service be a work around while he's trying to rectify the situation? I use TunnelBear on my iPhone at rare times and believe its free for limited use. https://www.tunnelbear.com
Blacklisted IP addresses of the clients of ISPs is a common problem and most ISPs have somebody, or a procedure at least, for submitting de-list requests to the blacklist services. So usually it should resolve within 48 hours? (Unless there really is outgoing spam from that address?)
A new sponsor of the show ExpressVPN (supposedly) allows outgoing connections to be directed via VPN on an app by app basis. So installing this would allow one to specify that just the mail app use the VPN connection.
The other short term solution I give to clients who have been IP blocked from services is to use a hotspot connection to their phone while accessing those services - coz that will give a different allocated external IPv4 address.
DD-WRT flashed routers allow you to install outgoing VPN profiles - I have one configured for connecting my SkyTV box to an IPVanish VPN server in the UK. And I can connect other devices via wifi if I need them to be "in the UK". I used it while in Switzerland and it sat on the inside of my VDSL router - effectively doing double NAT for those devices. That's a bit OTT for a temporary problem.
PS. I also use MX Toolbox for various email troubleshooting 🙂