I'd had my website sending out emails through a gmail account, but then I ran into my ceiling cap, and messages were no longer able to be delivered.
My website lives on a Windows 2003 box (IIS6) and sends out email via the IIS smtp service, and I had the smtp service configured to channel all of that email through gmail, so when I ran into this problem, I found that I could get a UCC SSL certificate, put that on my server, and then just deliver email directly.
I did set it up, and it works, but I think I'm still getting a certain number of messages that are not being delivered, and I need to improve that as much as possible.
I've read a bit about SPF DNS records, and I also have a question about MX records: given as how this mail server handles outgoing emails only, do I need to have an MX record?
Please let me know what I need to do ensure that the DNS is setup as correctly as possible. The FQDN of the server is portal.X.com
Thanks in advance for your help!