Societe Generale Email Address Format

Does anyone know the email format for Societe General CIB (UK)? I've tried alot of combinations but I always receive a failed delivery reply. I want to arrange informational interviews with people, as I've realised that response rate via email is far higher than connecting with them via LinkedIn.

I've tried the following with no success:

[email protected]
[email protected]

Anymore suggestions would be much appreciated?

Thanks!!!

Normally is [email protected], they could potentially have an initial however

Ive tried it with over six different people, all of which I recieved failed messages.