This may be an old question but it is new to me, so I will apologise in advance if this is going over old ground.
I access my VM email through a client called Thunderbird.
My email is an @ntlworld email account.
I have been with VM for many years, hence the old email extension.
I have now started to have an issue where it asks for a password nearly every time I run the client.
I have many other emails that I access through this client but never have this issue.
I have set the account access as per the VM requirements so everything appears as it should be.
I have used the IMAP options as shown in the link.
Once I have entered the password it works ok , until I close and re-open Thunderbird.
Then, and not every time, it may ask for the password again.
Now Thunderbird has a password vault where it saves the passwords for the email accounts.
I can see a passwords saved for ....
So this should be OK.
Any ideas as to why this has started now after many years of good service?