I have my personal email account as well as my business email coming to
Outlook. Is it possible to designate which account that I send email from so
that I can switch between personal and business email?
You don't say which version of Outlook that you're using, so I'll speak
about Outlook 2003 (version 11). However, a brief Google search tells me
that button is also available in Outlook 2007 (version 12).
When composing a message to be sent, you may, either before composing the
message or after, select the account to be used for sending by clicking the
"accounts" button on the Standard Toolbar. Select the account that you wish
to use.
As you may know, when replying to a message Outlook will automatically use
the account which received the message. As a note on that behavior, if you
try to use a different account for the reply (why would you?) the results
will be unpredictable, ranging from failed authentication to your message
being dropped into a spam bucket because smtp server didn't match the
sending e-mail address.