(09-04-2018, 09:00 PM)ORiOn Wrote: Oh believe me, I'm always up for a challenge, otherwise I would of already given up! haha
If I'm not mistaken, I already have a reverse dns for the IP set up. 125.ip-**-**-20.eu
The thing is, I'm pretty sure my records are all messed up and not correct, it may be stupid, but it's the thing that i struggle the must with...
I think a lot of providers do set up reverse DNS PTR records for all of their IPs now but they tend to set them with a default setting, one that often includes the IP address in it, whereas you want the PTR record to be set to your server's hostname, ideally. I think in practice, as long as you have a PTR record of some sort, regardless of whether its contents match your server HELO, a lot of mail services will let your mail through, but I think there are some mail services that do check there is a match. So, it's probably more accurate to say it's best practice to get the reverse DNS PTR record to match the server HELO than saying it's required or it will guarantee no spam issues - because that's not true.
One issue which prevents me from seeing what's going on with your DNS records is that you are removing your hostname from your posts - obviously I realise why, but maybe if you could let me know what it is in a private message (if that's allowed here?) then I'll have a look at the DNS records for your domain and see if I can see anything obvious. I'll also let you have my email address (again via private message) so you can email me and I can then let you know from my mail server logs if there is anything that your message could be doing better...
Let me know if you think that would be useful.
Keith.