Sorry to be the odd man, but I got a bit excited and have already gone to Production Server with this
I am not as technical as you guys, but can someone please let me know exactly what the problem is in dumb terms. From what i think i understand, there is an issue authenticating when sending emails to users from the same domain e.g. email@example.com to firstname.lastname@example.org while on the same network.
If that is the case, would it affect me since i have my Mail Server set up over the internet with its own public IP on a separate NS installation and not on the LAN.
Aldo would i be able to change when a solution is found for DKIM afterwards without losing anything.
Thanks for your patience