I'm in the process of trying to setup an IMAP mail server. I have
everything working except for the outgoing mail part. The SMTP server
is having issues trying to send mail. The lastest error I recieved
was:

The attached message had transient non-fatal delivery errors

THIS IS A WARNING MESSAGE ONLY - YOU DO NOT NEED TO RESEND YOUR MESSAGE!

This server is configured to automatically retry delivery at configured
intervals.  Subsequent attempts to deliver this message are pending.

Failed address: deleted@hotmail.com

--- Session Transcript ---
 Fri 2004-07-16 15:01:41: Parsing Message <xxxxxxxxxxxxxxxxxx\pd50000000001.msg>
 Fri 2004-07-16 15:01:41: From: deleted@deleted.com
 Fri 2004-07-16 15:01:41: To: deleted@hotmail.com
 Fri 2004-07-16 15:01:41: Subject: Testing
 Fri 2004-07-16 15:01:41: Message-ID: <002701c46b5d$47061cd0$a600a8c0@deleted>
 Fri 2004-07-16 15:01:41: MX-record resolution of [hotmail.com] in
progress (DNS Server: 68.105.161.20)...
 Fri 2004-07-16 15:01:41: P=005 D=hotmail.com TTL=(56)
MX=[mx4.hotmail.com] {65.54.167.230}
 Fri 2004-07-16 15:01:41: P=005 D=hotmail.com TTL=(56)
MX=[mx3.hotmail.com] {65.54.167.5}
 Fri 2004-07-16 15:01:41: P=005 D=hotmail.com TTL=(56)
MX=[mx2.hotmail.com] {65.54.166.230}
 Fri 2004-07-16 15:01:41: P=005 D=hotmail.com TTL=(56)
MX=[mx1.hotmail.com] {64.4.50.50}
 Fri 2004-07-16 15:01:41: Attempting MX: P=005 D=hotmail.com TTL=(56)
MX=[mx1.hotmail.com] {64.4.50.50}
 Fri 2004-07-16 15:01:41: Attempting SMTP connection to [64.4.50.50 : 25]
 Fri 2004-07-16 15:01:41: Waiting for socket connection...
 Fri 2004-07-16 15:02:11: 30 second wait for connect timeout exceeded.
 Fri 2004-07-16 15:02:11: Attempting MX: P=005 D=hotmail.com TTL=(56)
MX=[mx2.hotmail.com] {65.54.166.230}
 Fri 2004-07-16 15:02:11: Attempting SMTP connection to [65.54.166.230 : 25]
 Fri 2004-07-16 15:02:11: Waiting for socket connection...
 Fri 2004-07-16 15:02:11: Winsock Error 10038 Socket operation on non-socket.
 Fri 2004-07-16 15:02:11: Attempting MX: P=005 D=hotmail.com TTL=(56)
MX=[mx3.hotmail.com] {65.54.167.5}
 Fri 2004-07-16 15:02:11: Attempting SMTP connection to [65.54.167.5 : 25]
 Fri 2004-07-16 15:02:11: Waiting for socket connection...
 Fri 2004-07-16 15:02:11: Winsock Error 10038 Socket operation on non-socket.
 Fri 2004-07-16 15:02:11: Attempting MX: P=005 D=hotmail.com TTL=(56)
MX=[mx4.hotmail.com] {65.54.167.230}
 Fri 2004-07-16 15:02:11: Attempting SMTP connection to [65.54.167.230 : 25]
 Fri 2004-07-16 15:02:11: Waiting for socket connection...
 Fri 2004-07-16 15:02:11: Winsock Error 10038 Socket operation on non-socket.
 Fri 2004-07-16 15:02:11: This message is 72 minutes old; it has 0
minutes left in this queue
 Fri 2004-07-16 15:02:11: Primary queue lifetime exceeded; message
placed in retry queue
--- End Transcript ---
: Message contains [1] file attachments

I'm running windows XP with Mdaemon as the mail server. My internet
connection is through a cable modem.

I'm kind of at a loss as to why the SMTP server couldn't connect and
send the mail. Any ideas or suggestions would be greatly appreciated.

First, try to 
telnet 65.54.167.230 25 
and see if you connect. If not, you're fighting your firewall, OR your
ISP is preventing you to use an SMTP server that's not theirs. If the
former, you should know how to resolve it. If the latter, don't use
your own SMTP server, but use your ISP's.

I can't telnet that machine but an outside machine can telnet to my
machine. If my ISP blocks traffic on that port they would block
incoming before they would block outgoing. I even tried telneting that
address from a server that is already running a mail server, and it as
well could not connect. The connection timed out.

OK well I'm an idiot, after calling my ISP it turns out that they
block all outbound traffic on port 25. Yay for spammers finding yet
another way to annoy me besides just sending out mass e-mails.

Receipt (inbound) port 25 would be foolish to block. Nobody could
receive mail to their own hosted SMTP server.

Anyway, feel free to cancel this question unless you need more
assistance relaying through your ISP's SMTP server.