Important information from PlusNet on dial-up service

[#1]

BTinternet mail has nothing to do with Plusnet. Do you currently pay a small subscription to BT (around £1.53 per month) for their Premium Mail service? You may lose access to your email account if you do not either pay for Premium Mail, or have a BT Broadband connection.
The whole thing is entirely independent of how you access the internet - either using a mobile dongle, or your Plusnet connection or from any other means you have of accessing the internet. You can either use a web browser - go to http://home.bt.com/ and click on the "Email" link at the top right, or access it via POP3 email, using a mail client such as Outlook, etc.

[#2]

Thanks, Jaggies...
I'm sure that I pay for my telephone line AND the E Mail account and have been doing for a long, long time.  I thought that such an arrangement will have come to an end when BT dumped their E Mail users elsewhere.  So, that's the same thing, effectively, I suspect.  It's been so many years, I've lost track of it all, to be honest.
I ordinarily access my E Mail by using Outlook Express, although I also often go up to the Net and access it that way, instead. 
Ian.

[#3]

If your BTinternet email was part of a dial-up account, you may well lose it when BT drop dial-up completely, unless you sign up for the Premium Mail service linked above.
If you go to https://bt.edit.client.yahoo.com/accounts? (you'll need to log in with your BTinternet email address and password), it will tell you what type of account you have.

[#4]

Jaggies...
I've attached a picture of what I see under the account type for my E Mail.
So, I'm guessing that this is good news and I won't see my ancient E Mail account vanish, after January 7th, 2015? 
Ian.

[#5]

Yeah. That shows you are paying separately for your BTinternet email account, and it will not be affected by any changes made by Plusnet.

[#6]

Yeeeeehaaaaah!  Thank for that, Master Jaggies!