change IP address for outgoing mail?

[mesa]

Hello,

Ok, I apologize if I don't explain this well, but I'll give it my best shot....

Basically, my server sends mail from the main server IP address that the server.mydomain.com for DA was configured on. I have set all of my mail records and pop records on a different IP address that I added to the server.

I can send and receive with no problems, but I need to change the sending IP to to be the same as the IP that my mail and pop records use. Mainly because that IP has rDNS on it and the other does not.

So, how do I go about doing this?

Also, as a second question, when I check the reverse lookup for the mail IP on dnsstuff.com, everything looks good, except for this part:

[A=None] *ERROR* A record does not point back to original IP.

Is this something I can modify? Or should my ISP, who created my PTR record, change this?

Thanks in advance!

mesa

Also, I came across these two threads, but I think I need it explained to me in slightly simpler terms...

http://www.directadmin.com/forum/showthread.php?threadid=3324&highlight=change+IP

http://www.directadmin.com/forum/showthread.php?threadid=4214&highlight=change+IP

 

[kamino]

Also, as a second question, when I check the reverse lookup for the mail IP on dnsstuff.com, everything looks good, except for this part:

[A=None] *ERROR* A record does not point back to original IP.

Is this something I can modify? Or should my ISP, who created my PTR record, change this?

Hello,

Most of time ISP do not allow their customers to setup themself PTR record. You have to request "a reverse dns entry" to your ISP's support team.

In the same time, you have to setup PTR entries in your DNS server with DA:
log into DA as admin, click "DNS Administration", choose your domain name you want to modify, then enter your PTR records
(eg: 1.0.168.192.in-addr.arpa PTR domain.com.)

Best Regards

 

[nobaloney]

Re: Re: change IP address for outgoing mail?

You do not, and in every case I can think of, should not, set up reverse DNS records under DA unless you know that your upstream provider as assigned you reverse DNS authority.

Jeff

 

[kamino]

Ok... but why ?

 

[nobaloney]

Because if you do you'll have set up something you think you can rely on, while in reality no one in the world will see the reverse DNS that you've set up on your server.

Jeff