Version:           1.6.1 (using KDE 3.2.2, Gentoo)
Compiler:          gcc version 3.2.3 20030422 (Gentoo Linux 1.4 3.2.3-r1, propolice)
OS:          Linux (i686) release 2.4.20-gentoo-r7

The problem I have is that I used to have two accounts that I would check automatically with kmail 'interval mail checking'

Now, I have excluded the account from my check mail procedure because this account is not used anymore. However, I did not de-activate the interval mail checking because I thought it would be done automatically. But it is not.

This is tricky because when I check my mail manually, it works as expected but then it will check my mail behind my back.

I think that when the user does not want to check its mail with the global check mail, he also implicitely does not want to check it automatically. Therefore, I suggest to disable automatic mail checking when you disable the exclude from check mail.