Igor my dude, where have you been all my life? Your an absolute hero! Thank you :)
The issue is now fixed, if anyone finds this thread from google I'll summarise the fix from the other thread below:
If you cannot send or receive email from a domain that you have a webspace set up for in plesk...
Hi all, any help on this would be appreciated. I've been at it for 5+ hours and I'm ready to tear my hair out.
My version of plesk is 17.5.3 Update #45
Basically I was having an issue with postfix not being able to send or receive mail (the virtual.db issue where it says the mailbox doesn't...