waiming
asked on
Domain of sender address does not exist - NDR #5.1.8 smtp;553 5.1.8 generated
Hi,
I hope you can help me.
I am running Exchange Server 2003 in my organization. The server sits on the Active Directory server and the DNS Server as well. I have configured my company's domain name ntsoftware.com.my on it so that the emails will go out as user@ntsoftware.com.my.
I have configured a reverse lookup zone and forward lookup zone correctly for my mail server (with PTR and MX Records) and my mails can go out fine.
However, when userA send mails to this particular domain, say domainXYZ.com, the mails bounce back with this error.
<mxserver.ntsoftware.com.m
<userA@ntsoftware.com.my>.
userA@ntsoftware.com.my does not exist>
I have gone thru many archives but I can't seem to find the answer! Please help!
Thank you.
I hope you can help me.
I am running Exchange Server 2003 in my organization. The server sits on the Active Directory server and the DNS Server as well. I have configured my company's domain name ntsoftware.com.my on it so that the emails will go out as user@ntsoftware.com.my.
I have configured a reverse lookup zone and forward lookup zone correctly for my mail server (with PTR and MX Records) and my mails can go out fine.
However, when userA send mails to this particular domain, say domainXYZ.com, the mails bounce back with this error.
<mxserver.ntsoftware.com.m
<userA@ntsoftware.com.my>.
userA@ntsoftware.com.my does not exist>
I have gone thru many archives but I can't seem to find the answer! Please help!
Thank you.
Hi,
If you need to send mail externally, the domain you use for your e-mail addresses (SMTP that is) need to be recognized within the DNS naming convention. So the .my needs to go, it should be ntsofware.com. Only thing is that you need to be the owner of this domain, else, you would need to deposit a new domain name with your ISP and make sure your e-mail addresses get this DNS name (@yourdomain.com). Then, make sure to change the RUS to @yourdomain.com instead of ntsoftware.com.my and you should be goo to go (also do a forced update on the RUS and make sure to delete the old e-mail addresses).
If you need to send mail externally, the domain you use for your e-mail addresses (SMTP that is) need to be recognized within the DNS naming convention. So the .my needs to go, it should be ntsofware.com. Only thing is that you need to be the owner of this domain, else, you would need to deposit a new domain name with your ISP and make sure your e-mail addresses get this DNS name (@yourdomain.com). Then, make sure to change the RUS to @yourdomain.com instead of ntsoftware.com.my and you should be goo to go (also do a forced update on the RUS and make sure to delete the old e-mail addresses).
ASKER
Hi Kidego,
My domain's public DNS name is ntsoftware.com.my
If it is not public, is there a way to make it public? How do I go about that?
The .my is required because I am from Malaysia and the domain name is registered with MYNIC (Check www.mynic.net) - WHOIS section.
The IP address that I have set for the domain is 202.75.190.234
I seems to be a DNS setting and some Reverse Lookup Zone thing.... but I can't be sure. Hope that you can help.
Regards,
waiming
My domain's public DNS name is ntsoftware.com.my
If it is not public, is there a way to make it public? How do I go about that?
The .my is required because I am from Malaysia and the domain name is registered with MYNIC (Check www.mynic.net) - WHOIS section.
The IP address that I have set for the domain is 202.75.190.234
I seems to be a DNS setting and some Reverse Lookup Zone thing.... but I can't be sure. Hope that you can help.
Regards,
waiming
you've got your private IP address published publicly, that's the misery. You must be running your own public DNS, and your internal IP address got registered. Go into the IP configuration, and uncheck that box, "register this connection's address in DNS"
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I double-checked. Your MX shows an internal address and an external addres. I would suggest setting up your external DNS so that it does not show an internal IP. There are probably several inexpensive malaysian DNS services that will host your external DNS.
> set type=mx
> ntsoftware.com.my
Server: [202.75.190.234]
Address: 202.75.190.234
ntsoftware.com.my MX preference = 10, mail exchanger = othellomx.ntsoftwar
e.com.my
othellomx.ntsoftware.com.m
othellomx.ntsoftware.com.m
> set type=mx
> ntsoftware.com.my
Server: [202.75.190.234]
Address: 202.75.190.234
ntsoftware.com.my MX preference = 10, mail exchanger = othellomx.ntsoftwar
e.com.my
othellomx.ntsoftware.com.m
othellomx.ntsoftware.com.m
ASKER
Hi all,
The mails will go out to any other domain or any other email addresses except for this particular domain:
malaysian-re.com.my
The error that occurred is as I have mentioned. Microsoft says nothing about that error though.
Kidego, I have unchecked "register this connection's address in DNS" but to no avail.
Please advise.
Thanx and really appreciate this.
waiming
The mails will go out to any other domain or any other email addresses except for this particular domain:
malaysian-re.com.my
The error that occurred is as I have mentioned. Microsoft says nothing about that error though.
Kidego, I have unchecked "register this connection's address in DNS" but to no avail.
Please advise.
Thanx and really appreciate this.
waiming
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