What means the error message "Couldn't resolve host"?
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Answer
A "couldn't resolve host" message indicates that your webserver had a problem looking up the IP address of the destination server.
Possible reasons are:
- Problems with your webserver: DNS service not responding properly, iis overloaded/misconfigured or has troubles connecting to external addresses.
- Problems with your hosting company's network: DNS service on other DNS servers at your hosting company's server-network or general internet connection problems.
- Problems with public DNS services: Perhaps there are some DNS replication problems happening.
- Problems at the destination server end: Perhaps the destination's servers are overloaded, running maintenance, or just having problems at that moment.
When you have trouble like this, you should contact your admin/host/provider to clear this.