I had a similar issue recently on a 7830. I created a unique email address that I could assign to the device, "xerox@*******.com) and then I added the public DNS settings for Google which are 220.127.116.11 and 18.104.22.168. This was for a small business that didn't have a domain or DNS servers. You also have to populate the domain field with something whether they are on a domain or not. If they are not on a domain it doesn't matter what you put in there. In my case I used att.local.net as that was their ISP.
You can read more about Google's public DNS here: https://developers.google.com/speed/public-dns/docs/using
Edit: Just read in another post where some users are having to put smtp.googlemail.com instead of smtp.gmail.com.
All the best,
We need more information about ur setup to be able to help you, I suggest you search the forums as this question has been asked several times before.
Please remember to select "Accept as Solution" for posts that helped you solve the issue.
Dear All ,
i configured the 3615 with ip that can access the internet and i used smtp.gmail.com as smtp server but i couldnt send emails from it, also the dns status still unknown (i tried to put workgroup.lacal in the dns DNS Domain Name field)
when i try to send email i get error unable to connect to smtp server or unable to resolve smtp servers name)