Ok, this may have been a stupid question, I don't know. But after further investigations, I see that this happens quite a bit on the other SMTP servers as well, they just report it occasionally and not long enough for me to be notified. There is only one host that constantly reports this.

Is there something I should change in the way the test works to avoid getting the "Unexpected service response" message?

Thanks, Michael

-----Original Message----- From: Lowery, Michael Sent: Monday, June 06, 2005 1:51 AM To: hobbit at hswn.dk Subject: [hobbit] Unexpected service response

I've never had a problem with the SMTP test before. Now, testing a postfix mail server, I get a Yellow alert, and the page says:

Service smtp on mail.domain.com is not OK : Unexpected service response

501 Syntax error in parameters or arguments

I can telnet to port 25 on this server with no problems from the hobbit server, I get a 220 message upon connect. Here is exactly what I get (names and IPs changed to protect the innocent). So what can be the problem here?

[root at hobbit etc]# telnet mail.domain.com 25 Trying 20.30.40.51... Connected to adsl-20-30-40-51.dsl.hometown.isp.net (20.30.40.51). Escape character is '^]'. 220 SMTP service ready

Thanks, Michael

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