Is there any tutorials out there to set up mercury to run as a mailing

system, that is not local? What I'm aiming to do is take my domain so I

can create emails for others, as in, not just local can grab it. I want

it so it is similar to sending/recieving lets say, from one computer,

to another computer, etc, while still being pretty secure (Aka not smtp

sending mail unless they login first, something like that.)

Like it was said, it's the same as running locally and the manual is quite good about setting up Mercury/32.  The knowledgebase at http://kbase.pmail.gen.nz/mercury32.cfm provides a lot of help as well.  Here's a few of my recommendations.

1.   Always run any MS Windows system behind at least a NAT router.

2.   Always run some sort of firewall so that you have some sort of control over the programs sending outbound mail. [This is a case of do as I say not as I do though since I'm not currently running a firewall. ;-)]

3.   If you are planning on hosting other peoples domains I would recommend using "Domain" accounts where the people on the outside would pull their mail using something like MercuryD from your system.

I use GoDaddy  for three of my domains and I have a fixed IP address so it's quite simple to me to setup the MX hosts.

Is there any tutorials out there to set up mercury to run as a mailing system, that is not local? What I'm aiming to do is take my domain so I can create emails for others, as in, not just local can grab it. I want it so it is similar to sending/recieving lets say, from one computer, to another computer, etc, while still being pretty secure (Aka not smtp sending mail unless they login first, something like that.)

I am trying to get rid of godaddy email, since I only get my domains from them, not hosting. I have my own server for that, would save some coin on hosting the mailing server as well on my server, since everything else is. Does anyone have any suggestions/faqs? I haven't been able to find anything for proper setup, maybe I am just blind. 

I apologize if I missed a guide, but I would love to get the link for it! Thank you!

Works just the same over the internet as it does on a local LAN.

The help is very good, and is the best place to start.

Pay close attention to the SMTP Authentication settings before opening your port 25 to the outside world.