--- mouss <[EMAIL PROTECTED]> wrote:

> Stephen Liu a écrit :
> > Hi folks,
> > 
> > 
> > Debian Etch
> > Postfix
> > Courier
> > MySQL
> > 
> > 
> > The mail server can send mails via telnet but unable to receive
> mails. 
> > All mails sent to [EMAIL PROTECTED] were rejected.
> > 
> > 
> > $ tail /var/log/mail.log
> > Oct 16 09:16:13 xen01 postfix/smtpd[1651]: connect from
> > web35208.mail.mud.yahoo.com[66.163.179.87]
> > Oct 16 09:16:14 xen01 postfix/smtpd[1651]: 51DD82055B:
> > client=web35208.mail.mud.yahoo.com[66.163.179.87]
> > Oct 16 09:16:15 xen01 postfix/cleanup[1655]: 51DD82055B:
> > message-id=<[EMAIL PROTECTED]>
> > Oct 16 09:16:15 xen01 postfix/qmgr[1574]: 51DD82055B:
> > from=<[EMAIL PROTECTED]>, size=1339, nrcpt=1 (queue active)
> > Oct 16 09:16:15 xen01 postfix/smtp[1656]: 51DD82055B:
> > to=<[EMAIL PROTECTED]>, relay=none, delay=1.1,
> > delays=1.1/0.01/0.05/0, dsn=5.4.4, status=bounced (Host or domain
> name
> > not found. Name service error for name=mail.satimis.com type=A:
> Host
> > not found)
> 
> First, you have a DNS problem.
> $ host mail.satimis.com
> mail.satimis.com has address 220.232.213.178
> 
> so from here, mail.satimis.com has an A record.


I think my problem is on virtualization networking.  Unfortunately I
haven't figure out how to solve it.


This is a Xen box with only one external IP, 220.232.213.178 connected
to the Host.  The network setup is as follow;

Host  192.168.0.110  (xen0.satimis.com), a desktop workstation
guest-1  192.168.0.201 (xen01.satimis.com), mail server
guest-2  192.168.0.202  (xen02.satimis.com), mail server

There is no server named as mail.satimis.com running on this Xen box.


Now I forward all ports of 220.232.213.178 to 192.168.0.201 on router. 
One thing I can't resolve.  If running Unix mailbox send/receive mails
are of no problem.  Problem on receiving mails only happens on virtual
domain. 



> PS. unrelated to your problem, but still relevant for networking:
> 
> $ host 220.232.213.178
> Host 178.213.232.220.in-addr.arpa. not found: 3(NXDOMAIN)
> 
> I hope this IP doesn't send mail!

No.  All ports of this IP address are forward to 192.168.0.201


B.R.
Stephen L

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