![]() ![]() I'm not getting the thing about not being able to telnet to the email server. dns2 (Optional, IPv4 address): The backup DNS server to use. I just can't seem to resolve any IP addresses. Web pages for ip addresses work fine and really fast through home broadband. On my laptop (currently connected through my phone's 4G) this worked fine. So the first time it just returns a fail, the second time it returns the actual address, like it cached the initial address, but just didn't. DNS request timed out timeout was 2 seconds. It doesn't (shouldn't) care about the domain tied to the address.Ĭould the whole reverse DNS thing be a "red herring", so to say, in your case? Again, not claiming to be an expert on DNS or anything, but I would think if you are trying to send email to an email server that is doing reverse DNS checking your server would still connect but the server on the receiving end would send back some type of error message saying something about reverse DNS. Additionally, this can help with Over-The-Air updates. Request to localhost timed-out > Server: localhost Address: 127.0.0.1 Non-authoritative answer: Name: Address: 68.178.213.61. I could be wrong, but my understanding of how RDNS works with email servers is the receiving server is just checking to make sure the sending server IP address has a proper reverse DNS entry. However, when people send/recieve email they use when the email is sent/recieved it's checking for an RDNS of, which technically lives on 71.X.XX.XX1 but isn't finding it cause the RDNS is for the server hostname, not the domain. Ifyou havethree DNS servers configured for each client. Might be worth checking from somewhere outside you public/private network. DNS requests can time out in 30 seconds, which maynot be long enough to establisha dialup connection. The are some web-sites that offer DNS tools for checking this type of thing. BUT, when I run the same two nslookups on a different PC (an XP Pro) that is behind the router with 1.1.1. ![]() The changes were made on Friday, so any DNS propagation should be complete by now, right? ![]()
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