I write a lot of emails. Some are FYIs only, some include action items, and some are important to the recipient. In the years of emailing, I found using certain keywords and phrases in an email subject line helps tremendously when I want my email opened.

These are the subject lines I currently use.

Examples: Not every example below includes a subject topic, however, you should always include the subject topic as well.

>>> Action Item in the Email

Action Required: Book travel to X conference

Book travel to X conference Please Review: Draft contract

Draft contract Please Approve: Venue Contract

Venue Contract Register Now or Registration Required

or RSVP Now or Please RSVP or RSVP Required

or or Please Review & Approve : Archer Hotel Agreement // Oct. 3-4

>>> Response Needed

Response Requested: Lunch order on Thursday

Lunch order on Thursday Please Respond: Conference breakout sessions

Conference breakout sessions Immediate Response Requested

>>> Important Info

Important Information: Vacation Policy Change

Vacation Policy Change Cost Center Codes (Save for Reference)

Please Read: Fire Alarm Testing Schedule

Fire Alarm Testing Schedule For Your Information

What other email subjects lines do you use to get people to open your emails?

This is a dynamic list. I will add more as I use them.