I have an Exchange 2010 environment with 2 CAS/HUB servers, 2 Mailbox servers, and 1 Edge Transport server that resides in our DMZ and has TMG 2010 running on it. Up until now, we have only allowed access to our corporate email if a user was either on our local network or connected via VPN. I'm now looking at allowing access through Outlook and/or OWA from the Internet without a VPN connection.
Our domain, company.com, has a website that resides at a hosting company, so the public A record for our domain points to the IP Address of the hosting company. I do have a public A record for both mail.company.com and webmail.company.com that point to our mail server. Do I need to add an SRV record and an A record for autodiscover.comapny.com that points to our mail server, or just an SRV record? Any help would be appreciated, thanks.