Where's the Mailbox? is a collections achievement awarded for acquiring a single heirloom in the heirlooms tab, the first in a series.
Series
- [Where's the Mailbox?]
- [Alt-ernative Lifestyle]
- [Ready for Powerleveling]
- [Heirloom Hoarder]
Patch changes
- Patch 6.1.0 (2015-02-24): Added.