Email Manager with password protect specific accounts

[fordranger2000]

Hi
I have 3 email accounts and I wonder if anybody knows an email manager where only one Email Account is open all the time and the other 2 are locked and I have to sign in with a password each time I check Specific email account.

The maker of maildroid told me he's gonna add this feature, but I have been waiting a while now, and so far he hasn't added this feature, so wondering if anybody knows an app that will do that

any help would be appreciated

Thanks