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Thanks, this helped track down the problem.
Telnet showed that port 25 was blocked on outbound connections from our
servers. It turns out that our ISP had this port blocked for our IP
addresses on the router. This was a surprise since they weren't supposed
to be firewalling or blocking anything.
--Paul
----- Original Message -----
Sent: Wednesday, April 10, 2002 5:14
PM
Subject: Re: [IMail Forum] "MX fail to
connect" in IMail 6.04
>We recently moved our servers to a new data
center. IMail can receive
>messages, but now it does not send out
messages. In the SMTP logs, for
>every outbound message, we see
error messages like:
>
>Trying delphiplanet.com (0)
>MX
connect fail "66.34.234.34"
on the imail box, can you
telnet
66.34.234.34 25
it works for me:
# telnet 66.34.234.34
25
Trying 66.34.234.34...
Connected to 66.34.234.34.
Escape character
is '^]'.
220 mail1.wise-advice.com ESMTP Server (Microsoft Exchange
Internet Mail
Service 5.5.2653.
13) ready
quit
221 closing
connection
Connection closed by foreign host.
>I tried using the
knowledge base, but nothing suggested there seems to
>help. DNS
appears to be set up correctly (in the errors above, you can
>see that
delphiplanet.com is resolved to its IP address), but I tried
>using
both a single and multiple DNS addresses in the SMTP
>configuration. I can also ping outside addresses from the
server. There
>is no firewall in place. I used the "lookup"
utility to view the DNS
>server information, which appears to be
correct.
>I also tried contacting IMail customer support. Daniel
W. there replied
>with the following "helpful" message: "An MX connect
fail is caused if the
>mail server connects to another mailservers (MX)
Mail eXchanger record and
>fails if it does in fact fail IMail will
move to the next MX in the
>list". Obviously no help at
all.
>
>It's not clear to me exactly what causes the "MX connect
fail" messages.
smtp is tcp, and Imail SMTP sending process must open a
tcp session with
the recipient's MX on port 25. if it can't,
"MX connect fail"
> Is there a way to turn on more
verbose messages?
you could try checking "debug" box for
SMTP.
can you tracert from Imail to the
MX?
firewall?
Len
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