If your account has at least two assigned sending IPs, you can select which sending IP you would like your account to use. For instance, you may want to send with a specific IP for one from address, and then switch the sending IP for sends from a second from address.
Edit Company Sending IP
- Open the Account Folder
- Click Account Preferences
- Find the Options section
- Click the Default MTA(s) drop-down to select the sending IP
- Click the "x" next to a selected IP to take it off the default list
- Click Save