We Noticed Something, Thought You Should Know
This one’s personal. A little cheeky, but it works. Use this line to highlight things like suspicious logins, inactive accounts, or sudden spikes in usage.
Where it shines: In customer service and account success roles. You’re reaching out proactively, but in a non-alarmist way.
This subject line can also be:
- Noticed This on Your Account—Heads-Up
- We Flagged Something Unusual. Want to Check?
- Your [Feature/Usage] Spiked. Here’s Why
Upcoming [Event/Change]: What You Need to Know
This is the perfect subject line for when you need to inform people of something important, but it’s not an emergency.
This subject line can also be:
- Here’s What’s Changing on [Date]
- [Event/Change] Is Coming: Be Ready
- Heads-Up: [Important Detail]
Urgent: [Situation] Requires Your Attention Today
No ambiguity, no fluff. I usually recommend this subject line for time-sensitive updates, such as system outages, benefit enrollment deadlines, and client fire drills.
Note: If you’re sending this to customers, be extra careful. Overuse can trigger panic or loss of trust.
Reminder: [Event/Deadline] Is This Week
This one works because people forget. Honestly, most of us do. I’ve used it to follow up on mandatory compliance training, quarterly reviews, or payroll updates.
The phrase “this week” creates a sense of urgency without sounding panicky. It lets the recipient know that time is running out, but there’s still time.
Reminder emails with this kind of subject line tend to have open rates 25-35% higher than vague nudges like “Just checking in.”
Notice: Change in [Policy/Procedure] Starting [Date]
This is your go-to when the news isn’t thrilling, but skipping it might cause real confusion.
Simple structure, timestamped, and unmistakable in purpose.
The “[Policy/Procedure]” phrasing gives it versatility: use it for time-off requests, expense reimbursement, or onboarding protocols.
What should we keep, change, or stop doing?
Tone: Collaborative, Transparent, Curious
This subject line for HR’s feels refreshingly honest. You’re giving employees explicit permission to critique openly, making feedback feel less like a formality and more like genuine collaboration.
We changed something big (and we think you’ll love it).
Tone: Teasing, Positive, Conversational
Policy updates usually trigger eye rolls, but what if employees expected something positive instead? Whether it’s improved parental leave, remote work perks, or flexible hours, this approach generates anticipation rather than dread.
Just ensure the email content delivers the on its promises—don’t let this be clickbait. Pair it with a brief summary of what’s new and why it’s beneficial.
Guess who just got promoted? (Hint: It might be you.)
Tone: Playful, Intriguing, Motivational
This one instantly sparks curiosity. Although promotions are exciting, they are often delivered dryly. Here, however, you flip the script by adding intrigue.
Hey [Name], your PTO misses you (really)
Tone: Humorous, Warm, Friendly
You know that colleague who never takes a day off? This subject line is perfect for them, offering a gentle and humorous reminder.
It’s best used quarterly to remind your team about their unused vacation time. Send it around burnout-heavy seasons, such as project wrap-ups or year-end sprints.
It’s humorous but sincere, reinforcing a culture that genuinely encourages rest.
Your feedback is safe with us, seriously
Tone: Reassuring, Sincere, Trust-building
Let’s be honest—survey fatigue is real. And “Please complete this 5-minute survey” just doesn’t cut it anymore. This line is all about safety. More specifically, it’s about psychological safety.
Use this line when you’re launching an engagement survey, pulse check, or sensitive topic like DEI or exit feedback.
