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Mailenable: Error: Could not reverse lookup 172.17.175.1 in DNS, error 9003. Warning: No Ptr Record found For Domain.

 

When setting up Mailenable on a web server under United-Hoster.de, the diagnosis shows that the check of the Host IP Reverse Loopup fails.

wants to reject your mail (such as Yahoo and Hotmail).

Test Detail

Test Data

Test Response

Status

172.17.175.1

(Reverse Lookup)

Error: Could not reverse lookup 172.17.175.1 in DNS, error 9003. [lnk:"Warning"/]: No Ptr Record found For Domain.

Warn

31.172.93.141

Resolved (31.172.93.141) to readdy-server.readdy.net

Success

Pass

127.0.0.1

(Reverse Lookup)

Address was detected as Private IP address.

Pass

 

 

DETAIL description

 

Under the detail description of the error is: at Warning-> No Ptr

A Reverse DNS lookup is used by remote hosts to determine who 'owns' an IP address.

For this to occur the 'owner' of the IP address must have registered a PTR record for the IP address.    

 

 

Solution:

If you have a Web server V server, Virtual Server set up with most providers, then two network connections are installed.

You can find the network connections under Windows-> Start-> Network Connections.

You have to disable a network connection.

 

Then select the Ethernet connection that is not connected to the IP of the web server.

Disable this with context menu-> disable

 

In the repeated test, all addresses of the IP reverse lookup are then in order.

 

Host IP reverse lookup tests

This test checks all the local machine's TCP / IP addresses for reverse DNS lookup. Some mail servers perform a reverse lookup on you IP address. Want to make that external IP addresses make a reverse lookup or mail servers (like Yahoo and Hotmail) wants to reject your mail.

Test Detail

Test Data

Test Response

Status

31.172.93.141

Resolved (31.172.93.141) to readdy-server.readdy.net

Success

Pass

127.0.0.1

(Reverse Lookup)

Address was detected as Private IP address.

Pass

Hosted Domain Resolution Test

 

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