I am using Infradig Mail as the local mailserver on my machine. If I do not enter a DNS server, mail is not sent - however if I enter the DNS (and alt. DNS) of my ISP, it works. However, I primarily installed the mailserver in order to be able to send mail independent from the ISP I log in with.
a) is there a DNS server that works with each ISP?
b) any alternatives are greatly appreciated, as well!
b) any alternatives?