To set your default email program in Windows 7:

  1. Open Default Programs by clicking the Start button Picture of the Start button, and then clicking Default Programs.

  2. Click Set your default programs.

  3. Under Programs, click the e‑mail program you’d like to use, and then click Set this program as default.

  4. Click OK.

See also: How do I ensure my dropbox emails are sent from my Gmail account?

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