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Please help. I keep getting "relay host configuration problem." I think this is because I'm not setting up myhostname and mydomain correctly in main.cf. But I don't think my host name will work. I think I'm supposed to insert my machine's host name there, and it is in the format of ip-192-0-2-0.ip.secureserver.net. Can someone help me to figure out if I need to change my hostname or do something else?

Here is the problem from my maillog:

Jan 29 14:57:04 ip-192-0-2-0 postfix/smtp[27740]: warning: relayhost configuration problem
Jan 29 14:57:04 ip-192-0-2-0 postfix/smtp[27740]: 6141BB9707F: to=<example@gmail.com>, relay=none, delay=0.03, delays=0.02/0.01/0/0, dsn=4.3.5, status=deferred (Host or domain name not found. Name service error for name=secureserver.dedrelay.net type=A: Host not found)

secureserver.dedrelay.net is GoDaddy's relay mail server, which I'm trying to set up postfix to send mails through. To do this, in main.cf I have:

relayhost = [secureserver.dedrelay.net]:587

Thomas Schlabomas
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  • There certainly is no such host as `secureserver.dedrelay.net`. Why is that in there? – Michael Hampton Jan 29 '14 at 22:12
  • Thank you Michael. Edited question above again to explain. – Thomas Schlabomas Jan 29 '14 at 22:16
  • There's still no such host. You've gotten invalid information from GoDaddy or somewhere. Ask them to give you the correct hostname. – Michael Hampton Jan 29 '14 at 22:21
  • In my account summary, it says: "SMTP Service: Server Name: dedrelay.secureserver.net". However, when I check further back in my maillog, when I was using sendmail, I had dedrelay.where.secureserver.net. Here is a maillog snip: Nov 5 14:50:31 ip-192-0-2-0 sendmail[17665]: rA5LoVDo017665: to=example@yahoo.com, ctladdr=root (0/0), delay=00:00:00, xdelay=00:00:00, mailer=relay, pri=30005, relay=dedrelay.where.secureserver.net. [nn.nn.nn.nn], dsn=2.0.0, stat=Sent (lxqX1m00N2RKi1N01 mail accepted for delivery) – Thomas Schlabomas Jan 29 '14 at 22:27
  • You reversed it. Did you not read the answer? – Michael Hampton Jan 29 '14 at 22:28
  • Yes, I did. I posted that comment before I saw your answer. Thank you very much. I have commented on your answer below. – Thomas Schlabomas Jan 29 '14 at 22:41

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There's no such host as secureserver.dedrelay.net. You've gotten invalid information from GoDaddy or somewhere. Ask them to give you the correct hostname.

I would guess it will be dedrelay.secureserver.net and that you put it in backward. That is a valid host.

Michael Hampton
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  • That was it Michael. I feel very stupid. Now it is able to find the host. However, I am still not able to connect to the host. I'm getting this now: Jan 29 15:30:11 ip-192-0-2-0 postfix/qmgr[28008]: D8B7BB97080: from=, size=417, nrcpt=1 (queue active) Jan 29 15:30:35 ip-192-0-2-0 postfix/smtp[28011]: connect to dedrelay.secureserver.net[nn.nn.nn.nn]:587: Connection timed out Do you want me to accept your answer and ask a new question? – Thomas Schlabomas Jan 29 '14 at 22:39
  • At this point, since you have the correct information in there now, you should contact GoDaddy. – Michael Hampton Jan 29 '14 at 22:40
  • Ugh they are so unhelpful. But thank you I will accept your answer and do that. – Thomas Schlabomas Jan 29 '14 at 22:42