Can´t delivery some mail..

[tanke67]

Why some servers don´t want to receve the mail from my server?

I got the "delivery temporarly suspended: server_xx refused to talk with me:544"

[uxbod]

Is your ZCS server on a public/private IP ? Do you have a valid rDNS entry for your server ?

[tanke67]

Is a Public address via a Nat in my firewall and if a do a reverse DNS lookup I get my ISP address..

[uxbod]

So does the rDNS entry match the name of your Zimbra server ? If not then you would be better using your upstream ISP SMTP relay server to send external email.

[tanke67]

out ISP alrady change the rdns to point our domine.. Some mails could been send.. but some other are defered.. is a matter of time? there is some thing that can we can check??

Thanks..

[uxbod]

Can you post your domain or PM it to us so we can check it out ?