I'm troubleshooting a Microsoft mail server. I go through the logical process of realizing that unless Crazy Monkey Man has put some sort of voodoo magic on my server box there must be a good reason why a Microsoft product isn't working. *cough*. Right, I telnet onto the server, authenticate myself and try sending a "mail from:" command. I get the error message "452 4.3.1 Out of memory" which I assume means I'm out of memory. So I check my server memory to see that it still has 2 gig free and is under no heavy load right now. Hmm, how could an SMTP service demand 2gig of RAM I wonder? Not even Microsoft would be so daring to put a hardware requirement like that. The truth is that when Microsoft says that you're "Out of memory" what they actually mean is that you don't have write privileges to a particular folder ( click here if you don't believe me ). They just say you're out of memory to trick you. Sort of like Microsof...