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T-bird/Gmail don't download messages moved from Xfinity Connect folders to Inbox

Frequent Visitor

T-bird/Gmail don't download messages moved from Xfinity Connect folders to Inbox

In one of our household's secondary accounts, I have folders named by year where I have archived select messages.  I want to move them to Gmail. Here's the process:

 

1) move 19xx folder contents to Inbox, mark all as unread

2) Set up Gmail to import from Comcast account

3) After Gmail says "done". none of the moved messages appear in Gmail - only new messages appear

4) Next step would be to move the messages to corresponding Gmail 19xx folder and restart step 1 with the next year.

 

To help determine which side has the problem I configured Thunderbird for the same account and repeated steps 2 and 3.  Same results.  Only new messages show up in Thunderbird.  Must be an issue with the Comcast POP server.

 

Why is the Comcast POP server not exposing the moved messages to 3rd party clients?  Is there an "age" setting on the server that needs to be tweaked?

Frequent Visitor

Re: T-bird/Gmail don't download messages moved from Xfinity Connect folders to Inbox

I experimented with another household sub account that has several thousand inbox messages that have not been moved from inbox and back.  A mix of read and unread.  Thunderbird grabbed all of them.

 

Seems somehow Comcast POP server treats moved messages differently and does not make them available to the POP interface.

 

Now whtat?

Bronze Problem Solver

Re: T-bird/Gmail don't download messages moved from Xfinity Connect folders to Inbox


gvaeth wrote:

Seems somehow Comcast POP server treats moved messages differently and does not make them available to the POP interface.

____________________
It's not really about "moved" messages, it's about Comcast making old messages invisible to POP3 clients when they move accounts to new servers. If you can use IMAP via Gmail those old messages should be available. Here's some boilerplate with some technical info and a bit of history about the problem:
A Unique ID is assigned to each message stored on a POP3 server. When email clients leave messages on the server they download the UIDs for every message on the server every time they check email, save that list of UIDs, and next time only download the messages that have UIDs that haven't been seen previously. So, if you start using a new email client, or if files used by your current email client to store the UIDs get mucked up, the email client will download all the messages on the server. If the UIDs of the messages stored on the server change, an email client will also download all the messages on the server, and that's almost certainly what happened here. Comcast have acknowledged that they make changes that would result in new message UIDs for some customers. Yeah, that sucks, and I have no idea how necessary it for new UIDs to be assigned, but the good news is that once you let your email client download all the messages on the server things should go back to normal.

When Comcast move accounts to new servers, they can't/won't move the old UIDs to the new servers. When they move accounts now they make the old messages invisible to POP clients so users won't be downloading gazillions of saved/old messages when their accounts get moved to new servers, figuring, I assume, that doing it that way causes the least amount of pain, overall, for their users. I'd guess that they're right about that.
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