Virgin Trains makes the big list in a bad way.

An email list error accidentally invited 75,000 people to a golf outing.

An email invitation intended for 75 elite British customers of Virgin Trains (the same company who owns Virgin Records, Virgin Airlines, Virgin Phones, etc.) accidentally included 75,000 of the company’s customers, reports the UK’s Telegraph. It’s a common error that often runs its course with very little consequence — only this time — the company was inviting the group to a complimentary golf outing.

Though Virgin isn’t explaining how the error occurred (yet), we’ve experienced this type of email oversight as a by-product of group mail lists with very similar names. It’s possible to rearrange your groups in Outlook 98 and 2000, but the process is clumsy at best.

Simpler solution: add numbers to the beginning of each group’s name. It’s a quick way to distinguish those important groups from the others.