How to separate business from personnal in mail

Question

I'm using 5 different account in mail, some are for business, some for personal use. Sometime, a business mail is send from a personal account by error and vise versa. Is it possible to have two mail application? One for business and one for personal use? So no mistake can be done when composing and sending mail.
What will be the option in my situation?
Also, where can I learn advance feature (business tips) using mail application? Tutorial?
Thank you,
BigBlaze

Answer 1

While it is the most fail-safe method to incorporate, if you prefer not to implement Barney-15E's advice about setting up two or more separate user accounts on your computer, consider the following:
Go to Mail's Preferences > Accounts, and for each email account, check the "Use only this server checkbox." I'm assuming that each account has its own unique outgoing mail server.
Also, make sure that there is only one unique email address associated with each account (also at Preferences > Accounts), and not a comma-delimited list of several email addresses.
In Preferences > Composing > "Send new messages from" pulldown menu, choose "Account of selected mailbox".
In your main Mail viewer window, there is a gray triangle that expands/collapses the ability to view individual inboxes versus a single conglomerate of all messages in what appears to be a single inbox. Click on that triangle to expand the list of underlying inboxes and make a practice of operating only from within an underlying inbox, never from the top-level aggregated inbox, i.e., select an individual account's inbox.
Lastly, in a message composition window, if you are displaying a pull-down menu of available smtp servers and a pull-down menu of available accounts, remove those pull-downs so you can't get in there and inadvertently change things.
These things, in conjunction with consciously making a practice of operating only from within an underlying inbox (i.e., an account's individual inbox highlighted), and never from the top-level aggregated inbox, will go a long way, I think, in helping you avoid sending an email from the wrong account. It is not an absolutely foolproof solution, but unless you want to set up separate user accounts on the computer or install a second, non-Apple mail application like Entourage and divide up the email accounts between the two applications, I think that those things will give about as much avoidance as you can get.