i recieved this today from a zimbra account
<email@example.com>: host hwchp.houwire.com[18.104.22.168] said: 421 hwchp has
refused your connection because your server did not have a PTR record. (in
reply to MAIL FROM command)
can someone tell me how to setup a PTR record and do i need to understand what a PTR record is in order to use Zimbra.
Thanks in advance.
Fedora Core4 Zimbra 3.0
is this somthing i would set at the server or on the domain host (dyndns.org)?
It's not possible unless you have static DNS. dyndns I don't think can support this. If you want to relay mail you'll need to use your ISP's mail relay as they have a static IP and properly configured MTA. Not sure you can do the same on a dynamic IP.
We have a static DNS IP and we still had to have our service provider do this. Just call them up and tell them you need a PTR record pointed to a public IP for your Zimbra server. The change takes anywhere from 24 to 48 hours. Ours changed within 24.