Different groups, different emails

Different groups, different emails

I've got few support groups, but when SDP+was implemented, we've using only in IT dep, by now, this SD service needs to be implemented to a different departments, such as security.

So we've created another email in Exchange 2010 called sb.support2@company.com that is forwarded to it@company.com (primary email in SDP+)
I've made some settings in group - screenshot 1.jpg
But run into few problems: (when I send email to a sb.support2)
1. No email notification uppon registration\editing\etc.. request in SDP
2. When I'm trying to reply on this request in SDP I've got in CC field sb.support2 (screenshot - 3jpg) - wtf? Why it's there?
3. When I'm reply to request in SDP - I've got error -  Sending notification failed.  
4. And the last problem, when I open request in SDP, I can't understand, why in TO field is sb.support2@ (screenshot - 2jpg) ??

So, what am I doing wrong?

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