Forum: Rails Engines mail_fetcher socket error

Hi,
    I am using the mail_fetcher from

rubyforge.org/var/svn/slantwise/fetcher

as described in Advanced Rails Recipes,
Recipe 40.

It works great, but every once in a while
I get a SocketError and it dies with the
error output:

./script/../config/../vendor/plugins/fetcher/lib/fetcher/../vendor/secure_pop.rb
:98:in `initialize': getaddrinfo: Name or service not known
(SocketError)
        from
./script/../config/../vendor/plugins/fetcher/lib/fetcher/../vendor/
secure_pop.rb:98:in `do_start'
        from /usr/lib/ruby/1.8/timeout.rb:56:in `timeout'
        from /usr/lib/ruby/1.8/timeout.rb:76:in `timeout'
        from
./script/../config/../vendor/plugins/fetcher/lib/fetcher/../vendor/
secure_pop.rb:98:in `do_start'
        from /usr/lib/ruby/1.8/net/pop.rb:432:in `start'
        from
./script/../config/../vendor/plugins/fetcher/lib/fetcher/pop.rb:21:
in `establish_connection'
        from
./script/../config/../vendor/plugins/fetcher/lib/fetcher/base.rb:31
:in `fetch'
        from script/mail_fetcher:16:in `start'
        from script/mail_fetcher:15:in `start'
        from ./script/../config/../lib/daemon.rb:55:in `start'
        from ./script/../config/../lib/daemon.rb:45:in `start'
        from ./script/../config/../lib/daemon.rb:32:in `daemonize'
        from ./script/../config/../lib/daemon.rb:14:in `daemonize'
        from script/mail_fetcher:27


Does anyone know what causes this error?

Thanks,

Jim