Maintaining Force9 Email Accounts if I leave to a new ISP

[#1]

I have had an F9 account for about 20 years and have taken benefit of the option to create as many alias's as needed under the description@username.force9.co.uk protocol - mainly to skim off/redirect junk mail

As Plusnet is not able to provide FTTP currently (or it seems in the near future) I am looking at other ISPs to get access to ultra-Fast BB - which is available from OpenReach/Sky etc. in my street

My concern is that I will lose access to all of the F9 email accounts (and therefore have to update 100's of user profiles that I have created over the years) - can this be avoided

I see that @Gandalf has posted on this subject in the past, but the threads suggest that whether you can or cannot is very dependent on the user's account type and account history

Have there been any definitive guidelines issued on this subject ? What are my options?

[#2]

Moderators Note
This topic has been moved from Fibre Broadband to Email.

[#3]

If you can drop me a PM at @Gandalf once your account’s cancelled, we can try but I can’t promise we can as the ‘official’ guidance is no, due to the way our systems work, as complications may happen when trying to convert a legacy Force9 account to email only. 

An alternative to taking the risk in losing your Force9 email addresses is to hold out, if you can, for us to offer FTTP, though I can’t confirm when we’ll be doing so. 

If you do go down the path of cancelling your account, make a note of all your mailboxes, aliases, redirects, settings you may have at Manage My Mail (plus.net/email) as this will make things a lot easier to recreate afterwards, if we’re successful in converting your account. 

Thanks for your loyalty either way over the last 20 years!