See this as an example. This is brain.net.pk After, I will show you yours
and the difference.
Dig [EMAIL PROTECTED] (203.128.7.10) ...
Authoritative Answer
Recursive queries supported by this server
Query for brain.net.pk type=255 class=1
brain.net.pk MX (Mail Exchanger) Priority: 15 spine.brain.net.pk
**** brain.net.pk MX (Mail Exchanger) Priority: 10 brain.brain.net.pk ****
brain.net.pk A (Address) 203.128.7.10
brain.net.pk SOA (Zone of Authority)
Primary NS: brain.brain.net.pk
Responsible person: [EMAIL PROTECTED]
serial:2002041101
refresh:10800s (3 hours)
retry:1800s (30 minutes)
expire:3600000s (410 days)
minimum-ttl:3600s (60 minutes)
brain.net.pk NS (Nameserver) brain.brain.net.pk
brain.net.pk NS (Nameserver) spine.brain.net.pk
brain.net.pk NS (Nameserver) brains.brains.net
**** brain.net.pk PTR (Pointer) brain.brain.net.pk ****
brain.net.pk NS (Nameserver) brain.brain.net.pk
brain.net.pk NS (Nameserver) spine.brain.net.pk
brain.net.pk NS (Nameserver) brains.brains.net
**** brain.brain.net.pk A (Address) 203.128.7.10 ****
spine.brain.net.pk A (Address) 203.128.3.18
brains.brains.net A (Address) 203.128.6.10
nslookup 203.128.7.10
Canonical name: brain.brain.net.pk
Addresses:
203.128.7.10
OK, now for yours:
Dig [EMAIL PROTECTED] (64.225.119.8) ...
Authoritative Answer
Recursive queries supported by this server
Query for ubl.com.pk type=255 class=1
ubl.com.pk A (Address) 64.225.119.8
ubl.com.pk NS (Nameserver) ns1.magsnet.net
ubl.com.pk NS (Nameserver) ns2.magsnet.net
ubl.com.pk SOA (Zone of Authority)
Primary NS: ns1.magsnet.net
Responsible person: [EMAIL PROTECTED]
serial:980604488
refresh:10800s (3 hours)
retry:3600s (60 minutes)
expire:432000s (5 days)
minimum-ttl:38400s (100 hours)
ubl.com.pk MX (Mail Exchanger) Priority: 10 mail.ubl.com.pk
ubl.com.pk MX (Mail Exchanger) Priority: 20 mail.magsnet.net
ns1.magsnet.net A (Address) 64.225.121.248
ns2.magsnet.net A (Address) 64.225.119.8
mail.ubl.com.pk A (Address) 202.125.129.114
mail.magsnet.net A (Address) 64.225.121.248
Notice that there is no PTR record. Also, when I do a reverse DNS lookup on
the IP of your mail server, here is what I get as compared to above:
nslookup 202.125.129.114
****No reverse DNS****
Hope this helps!
Ben Winzenz, MCSE
Network/Systems Administrator
Peregrine Systems
-----Original Message-----
From: Irfan Malik [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, April 10, 2002 11:44 PM
To: Exchange Discussions
Subject: RE: DNS
Ben, how can I solve this.
-----Original Message-----
From: Ben Winzenz [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, April 10, 2002 7:16 PM
To: Exchange Discussions
Subject: RE: DNS
It doesn't appear that you have reverse DNS records for your Exchange
server. If the receiving domain is doing reverse lookups, they may not
accept mail from your domain.
Ben Winzenz, MCSE
Network/Systems Administrator
Peregrine Systems
-----Original Message-----
From: Irfan Malik [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, April 10, 2002 6:05 AM
To: Exchange Discussions
Subject: RE: DNS
Jennifer Hi, if you are talking about my previous problem about
brain.net.pk, which is still there, every evening I have to restart my smtp
service which then sends mail to brain.net.pk domain.
About DNS, actually I got this error from one of the domain I was send
mails.
"The e-mail system was unable to deliver the message, but did not report a
specific reason. Check the address and try again. If it still fails,
contact your system administrator.
<mail.ubl.com.pk #5.0.0>"
thanks & regards.
-----Original Message-----
From: Baker, Jennifer [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, April 10, 2002 2:22 PM
To: Exchange Discussions
Subject: RE: DNS
Q172953
Once again, vague. Maybe this article will help you to form a more detailed
question. Post your problem in detail and what you have done to try and
solve your problem.
-----Original Message-----
From: Irfan Malik [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, April 09, 2002 9:32 PM
To: Exchange Discussions
Subject: DNS
Dear List,
How can one check that the DNS is configured properly for exchange server?
Thanks in advance
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