I am getting some "Host or domain name not found. Name service error for name=gmail.com type=MX: Host not found, try again” (also for spamhaus.org, surbl.org, dnsbl.sorbns.net and others). I figure the rbi errors are just load issues or timeout issues, but the gmail failure concerns me (especially since when I released that message from the mailq, I got the same error.
From the command line, can I duplicate how postfix does the DNS query, because I am not seeing any DNS issues when I check via dig? -- Say, give it up, give it up, television's taking its toll That's enough, that's enough, gimme the remote control I've been nice, I've been good, please don't do this to me Turn it off, turn it off, I don't want to have to see