Are you stating that your Ambassador will disclose the email addresses to you, or email the property on your behalf? I have never been able to get my Ambassador to disclose an email address (e.g. GM, FDM). For example, I would have upcoming trips with questions about suite availability so I wanted to speak with the FDM / GM and my Ambassador would not citing personal privacy. When I stated that I can simply call the hotel main line or ask at the front desk when I stop by and the hotel's will disclose it, he could only offer to contact the property on my behalf. I wasn't even asking for the specific work email (first.last) just a property generic email for them. So, in every case I have just called up the hotel main line and asked for the email addresses and they always provide it.

I am not sure what the issue is, but it would be a nice improvement from the Ambassador Service.