To find the email server and thus find the appropriate email login page or server settings, you can do the following:
- Open Command Prompt
- Type “nslookup” and press Enter (this will enter a command line tool)
- Type “set type=mx” and press Enter (this will locate MX records)
- Type the domain name you wish to investigate and press Enter
Tip: most useful information is under “Non-authoritative answer.”
Further reading: http://www.exclamationsoft.com/exclamationsoft/netmailbot/help/website/HowToFindTheSMTPMailServerForAnEmailAddress.html