If you are using Frontier for your Internet Access, and having problems sending e-mail using our servers, I discovered an issue today and a work-around.
Frontier’s DNS servers are returning the IP address of a proxy server instead of our real e-mail address when you do a DNS query for mail.eskimo.com. The proxy server proxies web and incoming mail servers but does not pass or proxy the outgoing ports.
The work around for this is to go into your network connection configuration and select manually specify name servers and specify name servers that are not Frontiers, such as ours, 204.122.16.8 and 204.122.16.9 or open DNS or Google’s or some other public DNS servers.