I seriously think after reading the above link, the issue is same as mentioned there.

I thought it was weird the part where its I haven't made any major changes to my aliases file. I've tried putting in one that did user_name: User_name , but it didn't seem to work at all. I did run I had not read the linked sites, but I'm going to be doing that here later today. And I haven't made any changes to the transport file at all ofcourse unless there are still defaults in it, I'm going to look into the file now. Because also my fail2ban wants to try and continue to email @example.com for reports I assume but looking into it all now. I'll update after or if I find something thanks again...

Well after filtering through the links provided and a few more off of those sites as well. I'm still in the same place I am now.. But I do believe I know why just not 100% sure how to correct it because its literately my user name postfix doesn't like, which is "Spazztic_Killer", not sure if its the underscore it doesn't care for or the capped letters my money is on the underscore..

Correct me if I'm wrong but in my logs it does not say any thing about "User unknown in local recipient table", but it does say "(Unknown user: "user_name")" which is my user of "Spazztic_Killer". I have this user Spazztic_Killer getting all root messages so my aliases and transport is working fine postfix just most hate either the capped letters or the underscore or doesn't understand it.

So since this user is my personal main account, I think the solution is to login into root account directly (I mean over ssh, but not su root) and rename my user to something without the underscore and/or no capped letters. Which I've partional already have tried, but when I go to login it wont let me I use keys for auth, and sshd is locked down pretty damn tight, so I think I might have to reconfigure part of sshd to allow my user or new user in and try it that way.

Does this make since or like it would and/or should work?

Thank you all for all of the help again

Indeed logged in as root, changed user and group accordingly and a few other spots where my "user_name" was to correct my login process and this son of a gun WORKS!!!

Thank you again...

Awesome to hear, it worked for you...

Glad it worked out for you. I am really surprised that the underscore was problematic. It is not a character that requires escaping in regular expressions, doesn't cause problems for directories, or anything. From glancing through this wiki page, it looks like underscore is supposed to be a valid email character. In fact, special mention is made of how Hotmail restricts the allowed characters to dot and underscore.

Yea well not I am attempting to setup AUTH for postfix and dovecot + TLS for both and having trouble with them now but I'll continue to mess with them both and try and figure out what it is doing...