Default E-mail check problem

Hi all,

I have a simple problem, I have multiple e-mail account and I put an setup on one of them to check automatically for e-mail every 10 minutes.
The problem is that nothing is happening, no checking no nothing.

What could be the problem?

I have data always on.

Maybe Advanced Task manager can be a problem?

Thank you all

Also, e-mail application is default app from X10. (not moxier or something like that)
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