Portable Mail icon

Portable Mail

Copy local preferences

You can copy your user preferences folder to Portable Mail when Copy preferences window ask you. So, if you wish to use your accounts, inbox, outbox and preferences you already have, run Portable Mail on your system and click Copy when prompt.
When you copy your preferences then you will be also asked to copy your Downloads folder.
Warning: Data and passwords stored with Keychain are not portable!

Copy preferences window screenshot

Copy

This will copy your ~/Library/Mail folder and ~/Library/Preferences/com.apple.mail.plist file to Portable Mail. Preference file and folder are inside the application bundle: Portable Mail.app/Contents/Resources/Library/.
A confirm window will show preferences size and space available. You can confirm or cancel.

Copy preferences ok window screenshot

If copy will take some time a task bar give you a feedback.

Task bar screenshot

A pop up window confirm the end of preferences copy or advice if an error occurred.

Copy preferences done popupCopy preferences error popup

You will prompt when preferences size is greater than space available on your drive. This will not copy existing Mail preferences.

No space available screenshot

Don't Copy

This will allow you to copy your preferences next time you will open Portable Mail.

Never

This will never ask you to copy local preferences to Portable Mail. Remove file "Portable Mail.app/Contents/Resources/CopyPref_Done" to copy preferences again.