- Plesk for Linux
- Plesk for Windows
When opening webmail in a browser, it returns one of the following errors:
CONFIG_TEXT: "Server not found. Firefox can't find the server at webmail.example.com"
CONFIG_TEXT: "Internet Explorer cannot display the webpage"
CONFIG_TEXT: "Oops! Google Chrome could not find webmail.example.com"
Webmail domain does not resolve correctly in global DNS system because Plesk server is not set up to manage DNS.
To verify the root cause, run the following commands in a command-line interface:
# nslookup webmail.example.com
# nslookup webmail.example.com 203.0.113.2 <---- Plesk server IP address
If the first command does not return anything or returns a wrong IP address, and the second command returns valid records, then Plesk server is not serving the DNS zone for a domain.
There are two options to resolve the issue:
add Plesk server to the list of DNS servers (contact your registrar);
add respective A-record onto registered name servers.
If the steps above did help, refer to the article: Webmail of a domain without hosting is not accessible: 404 not found