Tough situation and I feel for you. I went through the same thing about 10 years ago.
I think your only option is to forward all the emails and contacts you want to save to the new email account. It may take a while to do this though...especially if you have 1000's of emails to save...and I'm not sure if you can do this in bulk or one by one with Spectrum email.
You can also set up an auto reply message to all incoming emails advising them of the new email address to use to stay in contact with you. I would set this up today just to give the auto reply the maximum time to hit everyone before it is cut off.
Thank you! I’ll try to dissect what you wrote line by line in the next few days.
Sorry for your loss!
Unfortunately, as others mentioned, I think all you can do is forward the Road Runner accounts to an existing Webmail provider such as Yahoo Mail, Gmail, or Outlook.com.
In researching this topic online, I came across an old method from the TWC days of how to transfer Roadrunner emails to a Webmail account: Have a look here:
Spectrum has updated the GUI interface for legacy TWC Roadrunner. As I do not have Roadrunner email/ Spectrum Email,, a Community Peer or Spectrum Moderator might be able to provide a URL with transfer steps using the more modern interface. But the process overall SHOULD be about the same.
How long does Spectrum allow their ISP email user log in experience to be inactive? The answer to this question will determine how much time the OP has to transfer his Mother's emails to a new WebMail account.
Someone using Spectrum email currently should be able to provide a more up-to-date explanation for this sad situation.