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Old 26th December 2011, 11:53
falko falko is offline
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Dec 23 01:12:32 25612-21212 postfix/smtpd[4023]: warning: hostname verification failed: Name or service not known
Do you have valid nameservers in /etc/resolv.conf?

Where is your server located? In a data center, or maybe on a DSL line with a dynamic IP?
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