Quote:
Originally Posted by unclecameron  don't freak out about Reverse DNS, basically you have to send an e-mail to whoever your ISP is, or whoever owns your IP addresses you're using, just tell them to add something like:
reverse DNS entry of mail.yourzimbrabox.com for your.public.ip.address
and they'll know what to do. SPF is little more sticky, but basically once you get reverse DNS done, it'll probably deliver most e-mail until you figure out SPF, reverse DNS missing will hoze you though. You can check reverse dns to see if it's right by typing
dig -x your.public.ip.address and see if it says mail.yourzimbrabox.com |
Since I host multiple domains on my Zimbra thru 1 single IP, what can I do to get "dig to say out" all these domains at the same time? :P
Do I have to get my ISP to enter a new PTR record for us everytime we add a new domain for a new customer? Is having PTR record = having a valid rDNS? Or they mean difference thing?
What about SPF record and Domain Keys? And signing up for feedback loop? Why is it necessary to have a valid abuse@ or postmater@ email address?
Zimbra should provide a handbook on proper email setup or a wizard to guide us thru these additional requirements to have our email server work properly.