[chapp]

I've receive my new 7520 Blackberry and I'm unable to send emails but my old 7510 was able to do it. I can receive but I can't send.

What is the problem ? I have 4.0 firmware and my BES is on 3.7

Thank's a lot

[NJBlackBerry]

There is no BES 3.7, so I assume you mean 3.6.

Have you connected your BB to your PC connected to your network, and started Desktop Manager. BES needs to detect that you have switched BBs and you may (or should) need to generate a new encryption key (Desktop Manager/Redirector settings).