You do not have a PTR record associated with your A Record / IP address

  • Thread starter Thread starter JJ
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J

JJ

Hi,
I have a web server successfully hosting a number of websites.

However...

I have a mail server which when trying to send some emails via smtp is
rejected....
apparently this is because 'I do not have a PTR record associated with your
A Record / IP address'

What does this mean?

I have another problem which I think may have something to do with it.

My server is called TestServer01.
i.e. if you right click on my computer , select network identification tab
the full computername says 'testserver01.' The workgroup is 'TEST'

The machine is a stand alone webserver connected to the Internet.
Should it be a domain? Or is workgroup ok?

Any Advice on these two problems, which, as I say I believe are probably
related, would be much appreciated!

Thanks
JJ
 
You can't do this internally - contact your ISP and ask them to set up the
reverse-lookup for the IP address of your mail server.
 
JJ said:
I have a web server successfully hosting a number of websites.
However...

I have a mail server which when trying to send some emails via smtp is
rejected....
apparently this is because 'I do not have a PTR record associated with your
A Record / IP address'

What does this mean?
Click to expand...

It means you SMTP server must have a REVERSE zone PTR record
that maps it's IP address to the name in that PTR and this must be
the name the SMTP server reports when it tries to send email.

Ask you ISP, the likely owner of your public address, to create
a pointer record for you IP address(es).

Configure you SMTP server to use this IP and Name.

Note: This name may nor may not be related to any of the
web sites you hold. It may even be an "artificial" name that
appears to be within your ISPs domain tree.

-----
I have another problem which I think may have something to do with it.
My server is called TestServer01.
i.e. if you right click on my computer , select network identification tab
the full computername says 'testserver01.' The workgroup is 'TEST'

The machine is a stand alone webserver connected to the Internet.
Click to expand...

This is unrelated to the above SMTP problem.
Should it be a domain? Or is workgroup ok?
Click to expand...

Workgroup is fine unless you wish it to belong to an (existing) domain.
If it is publicly exposed on the Internet, it probably shouldn't be a Domain
Controller itself.
Any Advice on these two problems, which, as I say I believe are probably
related, would be much appreciated!
Click to expand...

Your welcome, but...

No, they almost certainly unrelated.
 
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