Hi Haxxtastic it is safest to have the accounts on one e-mail each, and use vpn on the second one or a proxy/VM. And the safest method to transfer gold around is via the Guild bank.
Blizzard can see if you logged in on both accounts from the same IP so there´s a quite big chance you might get suspended 72 hours on your main account if your mule account got caught in gold selling

- Caper
I was planning on having 1 account that I just use for muling. I think the character cap is 50 so I could make 50 characters on 50 different servers, only problem is if I had to make 50 guilds to transfer gold from my farmers to my mules I'd have to find a way to fill all those guilds. I guess instead of running SGI 24/7 on my mule I could run it on the farming accounts and just make them GM?
But how does that work with selling, isn't it a bit of an imposition on the customer to have to join your guild, get promoted, and take their gold from the guild bank? Or is the danger mitigated enough by using guild bank instead of your mule account (and instead of those 50 characters being mules, can just be sellers to log in, take the gold from GB and give to customer)
One thing that is slightly annoying is I might have to make ANOTHER account with 50 characters that DON'T participate in any illicit activity to be the GM of all these guilds (so if ALL my sellers/farmers get banned, I still have my hoard of gold in GB)
So this plan would be (let me know if this would work):
Account 1: 50 toons, 50 servers - GMs
Account 2: 50 toons, 50 servers - Sellers
50 farming accounts, 1 on each server
Cost without individual proxies: $780 per month
Cost with individual proxies (SOCKS5): $1,040 per month
At the very least, out of paranoia I might just proxy the seller and GM account, to try and dissociate them from the farming accounts, but I figure I won't receive IP bans due to the fact that people in colleges etc all have the same IP so there's nothing to prove there.
All farming accounts deposit all gold into guild bank every 24 hours, as well as run super guild invite (please tell me this exists still) 24/7 while they farm to fill the guild with people so it's less sketch, offer free repairs to encourage joining and to show blizzard that the gold isn't just being transferred to one person but also being used for the guildies so it seems more legitimate, even though it might cut into profits QUITE a bit. As far as selling gold to customers goes, log into seller account, grab from GB, trade it to them in a popular hub, done deal (because I think mailbox is fuckin risky)
What do you think? I don't play this game so I'm not sure how it all works exactly but that's my rough game plan, would it work?