sorry for my english, I have used Google Translate.
I have a Arsys host (an ISP host from Spain), which gives me 50 email accounts with 6GB of storage each. I have about 6 accounts of those who need more than 6GB each, since they use much mail.
My problem is that I would like, that of the 50 accounts, who no longer need 6GB stay in Arsys, as the price goes into the budget for the storage they provide. But other accounts using more than 6GB use another mail server that offers apart eg. Amazon ... that even if you pay more you get up to 50GB of email
I've been watching Workmail Amazon, Google Apps for Bussiness, Microsoft Exchange, Office 365 ... and another that I do not remember because they offer mail service for businesses. It is quite out of my budget if I want to migrate all your mail accounts. So I just want some loose.
What I want to do is, if there is a DNS configuration to try a mail accounts (<6GB) to the mail server and the other Arsys (> 6GB) other payment server with more storage.
I do not know if I've explained.
Thank you.