Hi Toby,
I'm very sorry about that.



I read my code again and again but can't find any connection  between  the pop3 global inbox check, and the news (nntp) check. And I don't manage the rss check. (I don't know if you speak about a nntp or a rss account when you mention your news account).
My conclusion would be that you did not encounter this error after cancelling the news check just by chance, but I'm not very confident about this. Anyway, if there is a link, I don't see where and how.

Maybe you could try to change the 100 minutes setting ? For example, get the news account every 60 minutes, and see if sometimes you o­nly get your pop3 accounts every hour ?



For this, I must hook o­n the GetMail button (and menu) to call a Yamb function. This may be possible, but is likely to break every other extension which does the same thing. I'll have a look, but this will probably not definitely solve your problem:
there still is the standard automatic mail check of Thunderbird, happening about 60 times less often, and which may cause the same trouble. (In fact, yamb does it's mail check, considering the mail biff interval in seconds, but Thunderbird keeps going with it's own checks considering the interval in  minutes).