Thanks for responding. I have checked for spam on both sites (comcast and charter) and do not see charter-to-comcast picked up as spam. I do not see a facility on comcast or charter for white and black listing.
Comcast has something called a Safe List. But the site says "When Email Safe List is enabled, only email sent from addresses on the Safe List will be received. All other emails will be filtered out and not delivered." I don't want to filter out "all other" emails, so I have not enabled the Safe List. About blacklisting ... I only saw the following with ThunderBird on Ubuntu. I was trying to create a charter email account and got a message that my IP address was temporarily blacklisted, no reason given. Thunderbird then would not create the email account, I saw no such message on my Windows computers. So, on my Linux computer (Ubuntu), I tried releasing and renewing my DHCP lease. I recorded my IP address with https://whatismyipaddress.com/ Then issued sudo dhclient -r sudo dhclient Then recorded my IP address again but it was the same as before issuing the dhclient commands. It seemed that what I was doing was refreshing rather than getting a new IP address. Is that how it works? The next day I tried again to create a charter account with Thunderbird. I got no "temporarily blacklisted" message and the account was successfully created. It still boggles me why I saw that blacklist message. No one in this household is doing stuff on the Internet they should not. I have a Comcast support ticket and a special number to call tomorrow. My previous experiences with Comcast and Charter support, however, do not give me hope. Interestingly, As an IEEE member, I have an ieee.org account. As you may know this account is primarily a forwarding service. I have it set up to forward to my comcast account. When I send to <IEEE account> from <primary charter account>, the mail arrives at my comcast account. I am unable to send charter ==> comcast But I can send charter ==> IEEE, which is auto forwarded ==> comcast. You now all these problems started after the comcast data breach. This used to work. -----Original Message----- From: PLUG <[email protected]> On Behalf Of Paul Heinlein Sent: Monday, January 1, 2024 12:39 PM To: Portland Linux/Unix Group <[email protected]> Subject: Re: [PLUG] email issues On Mon, 1 Jan 2024, [email protected] wrote: > Here is my issue. I have put in a lot of time trying to solve this, > but have made zip progress. I even posted on the Xfinity forum but > have received no replies (lots of views though) > > My Comcast/Charter email is unreliable > > [... lots of good testing material snipped ...] > > Mail from charter to comcast does not arrive at comcast > > Mail from comcast to charter does arrive at charter > > Mail from charter to Gmail does arrive at Gmail > > Mail from Gmail to charter does arrive at charter My initial assessment is that it's Comcast's problem. Without any further information, I'd say that Comcast is silently deleting or withholding the messages from Charter. I've never used Comcast e-mail, and I don't know what filtering techniques its system employes, so here are two WAGs: Have you checked your Comcast spam folder for your Charter messages? Does Comcast have a way to check (and hopefully whitelist) messages it thinks might be spam? Since you never received a "message not delivered" error regarding your Charter-to-Comcast messages, my thinking is that they were delivered but were somehow blacklisted or marked as spam. But that's all I've got. Your testing is otherwise very thorough and exactly what I would have done. -- Paul Heinlein [email protected] 45°22'48" N, 122°35'36" W
