this goes beyond my experience however the TXT in my zonefiles look like this mydomain.com. IN TXT "v=spf1 a mx a:mydomain.com ip4:xx.xxx.xxx.xx ?all"
where xx.xxx.xxx.xx is the servers external IP,
also it seems important to have a PTR which is done by your ISP
xx.xxx.xxx.xx.in-addr.arpa -> sv01.mydomain.com
I’m having difficulty understanding the reverse lookup part. When I add this to the Reverse Address Records in Virtualmin it wants to add the mydomain.co.uk to the end!
I'm having difficulty understanding the reverse lookup part. When I add this to the Reverse Address Records in Virtualmin it wants to add the mydomain.co.uk to the end!
Virtualmin doesn’t deal with reverse records at all (because it would make no sense for it to–reverse records don’t have a “virtual hosting” context, as one IP can only ever map to one name). Do you mean in the BIND Webmin module, perhaps?
If so, you may want to read up on reverse records in the BIND section of the Webmin documentation here:
However, it’s worth noting that reverse resolution may not even be delegated to your system…in which case it would be pointless to add a reverse zone to your DNS server. Most hosting providers handle reverse resolution themselves, and that’s fine–as long as your IP resolves to something, it’ll work out OK. But, if your ISP has delegated reverse resolution to you, then obviously, you’ll need a reverse zone.
Thanks for the heads up on this -> I contacted my server hosts, and they handle reverse resolution themselves (as I thought). So everything should be okay on that front.
Appears that I have now been removed from the blacklist, so perhaps my request for removal was reacted upon and they removed the IP.
I just can’t see where else there is a misconfiguration - I’ll have to continue to monitor the blacklists and see if it happens again!