300+ Best Email Subject Lines' Collection to Increase Your Email Open Rates [2024]

If you are looking for some ideas to craft such subject lines for your campaigns that get the email opened, then you are in the right place.

Whether you are looking for something that induces FOMO or shows them that you can solve their problem right in the subject lines, or if you are just looking for some funny subject lines then this post will have it.

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Here is a 300+ subject lines' collection from real-world emails that caught our attention and have some psychological trigger that makes them work.

If you like something, I say steal it ;). For future reference, don't forget to bookmark this page or download these in a neat swipe file

Curiosity Driven Email Subject Lines

We humans, hate it when we are not able to complete a mental loop inside our head. This is why cliffhangers work so well. We can’t help but look at the next segment to close out that cliffhanger.

And this is precisely why the curiosity subject line works extremely well. These are interesting email subject lines that just work. But only if done right (even bad cliffhangers suck and result in cancellation of TV shows!).

There are some really good email stats showcasing the power of eye-catching subject lines as well. Feel free to A/B test the techniques we'll explore in this post within your subject lines for an optimal open rate and conversion ratio.

You can make your readers curious with your subject line by asking a question or promising something interesting within the email.

You can use this formula: Here’s Why We [Something Awesome]

Example: Here's why we are giving 100 Teslas away..

Here are a few of the highest converting curiosity email subject lines.

  • Mary Fernandez: “? a surprise gift for you! {unwrap}”
  • Refinery29: “10 bizarre money habits making Millennials richer”
  • Manicube: Don’t Open This Email
  • Digital Marketer: “Is this you?”
  • Thrillist: “What They Eat In Prison”
  • Eat This Not That: “9 Disgusting Facts about Thanksgiving”
  • Chubbies: “Hologram Shorts?!”
  • Digital Marketer: “Check out my new “man cave” [PICS]”
  • Digital Marketer: “Is this the hottest career in marketing?”
  • Digital Marketer: “Start using this new Facebook ad type”
  • Grubhub: “Last Day To See What This Mystery Email Is All About”
  • The Hustle: “A faster donkey"
  • UX Collective: “Your fingerprints are all over the place”
  • Select All: “The Two Possible Futures of Virtual Reality”
  • Refinery29 Everywhere: “The $1,000 hair trend with a dirty little secret”
Source: Sumo
  • Book of the Month: “Our most riveting book this month.”
  • Sephora Insider: “You NEED to see this new eye treatment.”
  • Madewell: “Everyone’s gonna ask you about these”
  • Hiten from Product Habits: “2 hours before launch and we are still scrambling”
  • Instant Boss Club: “80 likes to 458 likes SAY WHAT?”
  • Intercom: “Are you making this landing page mistake?”
  • Zillow: “The truth about moving expenses”
  • LinkedIn: “This is how much working from home saves you”
  • BuzzFeed Books: “A very ~controversial~ opinion"
  • LOFT: “Just wait till you see these skirts”
  • Pocket: “How to Sleep. Sleep for Success. Why Eight Hours a Night Isn’t Enough”
  • Tory Burch: “This. Is. It.”
  • Apartment Therapy: “Why You Should Keep Your Clothes in the Freezer.”
  • Digital Marketer: “Important message (about tomorrow’s big announcement)”
  • Digital Marketer: “[POLL] Can you answer this?”

FOMO Email Subject Lines

What is FOMO?

FOMO Stands for Fear of missing out. FOMO (Fear of missing out) is a very powerful trigger and if used in a smart way can improve the email opens of your next email marketing campaign by a huge margin.

This is one of the classic psychological principles, and probably one of the most effective ones.

We can use this to create scarcity and urgency for our offers. In fact use of words like “urgent”, “important”, “expires” have a track record of improving open rates.

Just make sure this subject line is used for a real scarcity (not one that resets every time). Also, overusing the FOMO can decrease its value and result in people not taking the emails seriously.

Formula: [Action] Now Before It's Gone

Example: Download This for Free Now before It's Gone

So, if you are looking for FOMO emails subject lines means here are few examples:

  • Dollar Shave Club: “We want to give you money.”
  • J.Crew Factory: “Click it or miss it, people: Over 500 styles under $25 is ending!”
  • Charles Tyrwhitt: “Shirts for $39 ENDS MIDNIGHT”
  • Book of the Month: “May’s best books are just too good to miss.”
  • Uber: “Grab a ride pass before they’re gone”
  • Digital Marketer: “[WEEKEND ONLY] Get this NOW before it’s gone…”
  • Poshmark: “Your discounts EXPIRE SOON.”
  • Shoes of Prey: “In case you missed these…”
  • Warby Parker: “Uh-oh, your prescription is expiring”
  • Airbnb: “Barnstable is in high demand for August”
  • Guess: “Tonight only: A denim lover’s dream”
  • AMC Theatres: “Hurry, Get Your Tickets to SOLO: A STAR WARS STORY Fan Event!”
  • JustFab: “By Invitation Only: Exclusive Rewards Inside!”
  • Groupon: “Starbucks – By Invite Only”
  • Killington: “Season Pass Savings Disappear Thursday”
  • Verizon Wireless: “[Name], your home is missing these easy upgrades.”
  • BaubleBar: “You’re a winner!”
  • Ibotta: “Don’t let this $5 bonus slip away!”
  • Crate and Barrel: “2x the rewards, 2 brands, 5 days only.”
  • JetBlue: “You’re missing out on points.”
  • Digital Marketer: “[URGENT] You’ve got ONE DAY to watch this…”
  • Digital Marketer: “Your 7-figure plan goes bye-bye at midnight…”
  • InstantBoss Club: “NEVER AGAIN SALE”
  • Jersey Mike’s Subs: “Mary, Earn double points today only”
  • Digital Marketer: “[LAST CHANCE] 85% off sale ends today!”

Email Subject Line Addressing Pain Points

As a marketer, it is one of your main jobs to understand your customers and know their pain points. And you should constantly be on the look out for more pain points, and ways to help them out with your solution.

In these types of subject lines, we use those pain points to bring out the pain in the reader and then offer a solution within the subject line. Know that the pain point you’re addressing must be a major one for your customer. This is where the practice of segmenting the list according to the type of customer helps!

If you're giving a solution to a pain point within the email, you can use the formula: How To [Achieve Desired Result]

Example: How To Make Millions by Losing Money

Here are a few subject lines incorporating the pain points:

  • Pizza Hut: “Feed your guests without breaking the bank”
  • IKEA: “Where do all these toys go?”
  • IKEA: “Get more kitchen space with these easy fixes”
  • HP: “Stop wasting money on ink”
  • Sephora: “Your beauty issues, solved”
  • Uber: “Since we can’t all win the lottery…”
  • Thrillist: “How to Survive Your Next Overnight Flight”
  • Guess: “Wanted: Cute and affordable fashions”
  • Evernote: “Stop wasting time on mindless work”
  • Duolingo: “Learn a language with only 5 minutes per day”
  • J.Crew: “Your summer outfit dilemmas SOLVED”
  • Groupon Experiences:** “Fun to Help You Survive the Holidays”**
  • Terrain: “Your all-weather dining solution.”
Source : Email Open and Click Rates by Sector (2018) by GetResponse.
  • Qapital: “Don’t think about saving. Save without thinking.”
  • ByRegina: “Struggling with a business decision? I made you a 1-page framework to help.”
  • Le Tote: “Monday-Friday Style Simplified”
  • Domino’s: “No address? No problem. Now Domino’s can deliver to over 150,000 Domino’s Hotspots.”
  • Adobe Stock: “Beautiful brochures made faster”
  • Verizon Wireless: “Enjoy NBA games right at your fingertips.”
  • Vidyard: “Engaging your prospects can be hard. Video makes it easy.”
  • Grubhub: “Sit back and let someone else do the cooking”
  • Yelp: **“Keep From Melting With These Iced Drinks.” **
  • Grubhub: “Repeat meal syndrome? We understand.”
  • Digital Marketer: “[CHECKLIST] Get up to 20% better email deliverability”
  • Digital Marketer: “The 30-Second Sales Pitch”

The Re-engagement/Retargeting Email Subject Line

No matter how good of a marketer you are, you’re gonna have a few people who will stop engaging with your emails.

Added to that, there will be people who will drop off your sales funnel, abandon their carts or jump off in between a webinar. In such cases, we send them emails in an attempt to grab their attention and get them back into the sales funnel.

If you have an eCommerce Store, you can literally 3X your sales with cart abandonment emails.

These subject lines primarily tend to overcome an objection which the customer might be facing, offer an exclusive deal which makes it easier for the customer to buy, or simply generate more FOMO.

Here are a few examples of retargeting/re-engagement subject lines:

  • Dollar Shave Club: “Hey, did you forget to open this?”
  • The Bouqs Company: “Can You Believe It’s Been a Month?”
  • Chubbies Shorts: “Lemme Teleport You Back to Your Cart. Free Of Charge.”
  • LinkedIn: “[Name], people are looking at your LinkedIn profile”
  • Groupon: “Still Interested in That Deal?”
  • ClassPass: “New things are happening!”
  • Airbnb: “Pick up where you left off”
  • DraftKings: “[Name], you have an undrafted contest entry!”
  • Vail Resorts: “Come Back This Winter With an Exclusive Deal, [Name]”
Source: Source: Barilliance
  • Glassdoor: “It’s Been A While…”
  • Marriott Rewards: “We’ve missed you, [Name]! Please come back!”
  • Nick Stephenson: “How you can afford Your First 10,000 Readers (closing tonight)”
  • Bonobos: “Hey, forget something? Here’s 20% off.”
  • Target:“The price dropped for something in your cart”
  • Syed from Envira: “Mary, your Envira account is on hold!”
  • Syed from Envira: “I’m deleting your Envira account”
  • Ugmonk: “Offering you my personal email”
  • Animoto: “Did you miss out on some of these new features?”
  • Pinterest: “Good News: Your Pin’s price dropped!”
  • Unroll.Me: “Unroll.Me has stopped working”
  • Vivino: “We are not gonna Give Up on You!”

Funny Email Subject Lines

In a large crowd, a genuinely funny person automatically grabs our attention. The same thing applies to our crowded inboxes.

Answer this honestly: When has it ever happened that you found a genuinely funny subject line in your inbox and you didn’t open it? Probably never (unless you have a vendetta against humor!).

While funny email subject lines are a great way to grab attention and get opens, you need to make sure they will resonate with your audience and not go on the offensive side. Doing that can result in an immediate backlash and a loss of subscribers.

Here are examples of funny email subject lines:

  • Groupon: “Hey… Were You Gonna Delete This?”
  • Red Sox Ticketing: “Come to Fenway May 2 - we won’t tell your boss!”
  • The Muse: “We Like Being Used”
  • Dollar Shave Club: “Open up and say wowie zowie!”
  • Eater Boston: “Where to Drink Beer Right Now” (Sent at 6:45am on a Wednesday)
  • Travelocity: “Need a day at the beach? Just scratch n’ sniff your way to paradise..."
  • Brooks Brothers: “Up to 40% off trousers & sport coats. It’s a tailor-made sale."
  • Thrillist: “Try To Avoid These 27 People On New Year’s Eve”
  • Free People: “‘Can I PLEASE borrow?!’ - everyone you know”
  • Baby Bump: “Yes, I’m Pregnant. You Can Stop Staring At My Belly Now.”
  • Gozengo: “NEW! Vacation on Mars”
  • The Bouqs Company: “Pow-pop-boom-crackfsss” (Note: This was for a 4th of July sale)
  • The Hustle: “Look what you did, you little jerk…” (this one is a hybrid of curiosity and humor)
  • TicTail: “Boom shakalak! Let’s get started.”
  • OpenTable: “Licking your phone never tasted so good”
  • Funny or DIe: “Revised policy regarding jean shorts at work”
Source : Funny or Die
  • UncommonGoods: “As You Wish” (This is a reference to the movie The Princess Bride.)
  • Grubhub: “Breaking chews! We found new restaurants near you!”
  • Warby Parker: “Pairs nicely with spreadsheets”
  • NextDraft: “OMGodfather”
  • Dollar Shave Club: “What to Do When You’re the Sweaty, Smelly Guy at the Gym”
  • Groupon: “Deals That Make Us Proud (Unlike Our Nephew, Steve)”
  • Nordstrom Rack: “Ray-Ban up to 50% off. Get in a new frame of mind.”
  • Crate and Barrel: “New planters? Oh, kale yeah.”
  • OpenTable: "Licking your phone never tasted so good"
  • Move Loot: "Seat Your Heart Out"
  • Overstock: "Seriously. We’d like to thank you."
  • Grubhub: "Last Day To See What This Mystery Email Is All About"
  • Refinery29: "10 bizarre money habits making Millennials richer"
  • Fabletics: "Your Butt Will Look Great in These Workout Pants"
  • Edgevale: "Get In Our Pants"
  • UrbanDaddy: "You’ve Changed"
  • Influitive: "So I’ll pick you up at 7?"
  • BloomThat: "Better than a pumpkin spice latte!"
  • Gap: "Mondays are suddenly AWESOME"
  • The Bold Italic: "Just Pho You: Where to Eat SF’s Best PhoPop"
  • Physique: "Get Ready. Keep the Pie Off Your Thighs Returns."
  • BuzzFeed: "Yes, We’re Still Talking About Kim Kardashian’s Butt"
  • Groupon: "There are no deals in this email"
  • Sublime Stitching: "Bummed you missed out? Console yourself…"
  • NightLife at the California Academy of Sciences: "Show Us Yours and We’ll Show You Ours"
  • Benefit Cosmetics: "Do you like to watch?"

Social Proof Email Subject Line

As a marketer, you’re probably no stranger to the fact that social proof is a huge booster for engagement and sales.

People like to do what other people are doing. It makes the brand more relatable and improves trust.

This same principle when incorporated within the email subject line can make a huge impact to your opens. Try to highlight a major objection and how a customer is overcoming it using your product.

You can use the formula: How Lessons [I/We] Learned [Action You Took]

Example: How I Grew My Business to 10k/mo in 90 days

  • Patagonia: “Top reviewed styles from customers like you”
  • HelloFresh: “Pssst… your friends are cooking up a storm!”
  • GolfNow: “You deserve some golf this week (top picks inside)”
  • Yummly: “Most Popular Recipes this Week”
  • Airbnb: “Make it a good night with John Legend and Airbnb”
  • Yummly: “Simple recipes from popular chefs”
  • Zillow: “5 homes that are trending right now”
  • Lenny: “Rachel McAdams and Rachel Weisz on the Female Gaze”
  • Inc: “18 Habits Highly Successful People Have (And the Rest of Us Probably Don’t)”
  • Adobe: "Adobe named a Leader in customer analytics"
  • Instant Boss Club: “See what our clients are saying…”
  • Sephora: “The people have spoken: these are their faves”
  • Target: “Moms are loving these fave maternity looks.”
  • Wish: “Whoa… These are the most wanted handbags this year.”
  • Digital Marketer: "This, friends, is how you sell with email…"
  • Digital Marketer: "[Case Study] $25,865/mo in recurring revenue"
  • Digital Marketer: "Case Study: 7-figure eCommerce Funnel"
  • Digital Marketer: "This guy makes 6 figures per month?"
  • Digital Marketer: "28,507 leads in 45 days"
  • Digital Marketer: "Tim Ferriss says “Hi”

Self-Love Email Subject Line

A part of what makes us human is our desire for love and acceptance by other fellow humans.

Everybody takes a little too excessive pride in ourselves and our abilities from time to time.

We can use this human tendency to our advantage and capitalize on our audience’s vanity.

Be sure that you don’t go overboard with this. A little too much and people consider it spammy. Your job in this one is to provide something that makes the reader look better or look worse than her peers.

  • Pop Physique: “Get Ready. Keep the Pie Off Your Thighs Returns.”
  • Guess: “Don’t wear last year’s styles.”
  • Rapha: “Gift inspiration for the discerning cyclist”
  • La Mer: “Age-defying beauty tricks”
  • Jeremy Gitomer: “How Have You Progressed Since the Third Grade?”
  • Rapha: “As worn in the World Tour”
  • Fabletics: “Your Butt Will Look Great in These Workout Pants”
  • Sephora: “Products the celebs are wearing”

Email Subject Line With a Great Offer

Humans are a sucker for good offers. You can call it greedy, but I’m pretty sure you’d also find it really tough to pass up on a crushing offer for a product you’re interested in.

A good offer packaged in a sweet subject line can be a game changer for your brand. There’s a reason why sales, discounts and offers work so well in your subject line.

Additionally, these types of emails get higher CTRs as well. This is because the people who are interested enough to open them email are highly likely to be interested in the actual offer as well.

You can use an email subject line generator to help you write the subject line that fits the offer in the email body and matches your brand voice.

  • Rip Curl: “Two for two”
  • Rapha: “Complimentary gift wrap on all purchases”
  • Guess: “25% off your favorites”
  • HP: “New must-haves for your office”
  • Seafolly: “A new product you won’t pass on”
  • Topshop: “Meet your new jeans”
  • La Mer: “A little luxury at a great price”
  • Topshop: “Get a head start on summer”
  • The Black Tux: “Get priority access.”
  • Digital Marketer: "Google Display Network (Your one page cheat sheet)"
  • HP: “Flash. Sale. Alert.”
  • Digital Marketer: “[Flash Sale] 85% off our Podcast Launch Plan”
  • Digital Marketer: “Your Content Campaign Planner (Google doc)”
  • Digital Marketer: “[EMAIL TEMPLATE] Fix your company’s biggest marketing issue"
  • Digital Marketer: “[CHECKLIST] Get up to 20% better email deliverability"
  • Digital Marketer: “Swipe these 5 killer traffic campaigns”
  • Digital Marketer: “Paid traffic not converting? Download this… ”
  • Digital Marketer: “Digital Marketing Mastery is open!”

Procrastinator’s Email Subject Line

Humans don’t want to work. Period. They are a lazy bunch. Even the “workaholics” among us would check out a quick hack or a shortcut that can make them get to where they want faster.

You can use this to your advantage.

You can offer a quick cheat sheet or a resource that will help your subscribers get some result really fast. And frame the subject line accordingly that makes the user want to check out the resource.

For example: If you're giving a step-by-step guide to achieve a result, you can use this formula: [Ebook] Step by Step guide to [achieving a result]

  • Digital Marketer: “[Free PDF Download] Claim our Social Media Swipe File”
  • Digital Marketer: “Steal these email templates…”
  • OptinMonster: “63-Point Checklist for Creating the Ultimate Optin Form”
  • Digital Marketer: “A Native Ad in 60 Minutes or Less”
  • Digital Marketer: “212 blog post ideas”
  • Digital Marketer: “[EMAIL TEMPLATE] Fix your company’s biggest marketing issue”
  • Ramit Sethi: “How to email a busy person (including a word-for-word script)”
  • Digital Marketer: “Brand NEW (and free) Training: 3 Steps To a Perfect Offer ”
  • Digital Marketer: “[85% Off] 3 Proven Facebook Campaigns to Run Today…”
  • OptinMonster: “Grow your email list 10X faster with these 30 content upgrade ideas”

Personalised Email Subject Line

It’s a pretty well known fact that personalised emails perform MUCH better than non-personalised ones. And similarly, personalised subject lines perform much better.

In fact, according to a study in 2015, emails with a person’s name in the subject line got 29.3% more opens!



But don’t worry, you don’t have to use your subscriber’s names to personalize the subject line. The person’s location, time zone reference, events in the area work too! Additionally, you can also use casual language or share something personal and relatable with your audience.

  • John Lee Dumas: “Are you coming?”
  • UrbanDaddy: “You’ve Changed”
  • Bonnie Fahy: “Mary, do you remember me?”
  • Influitive: “So I’ll pick you up at 7?”
  • Kimra Luna: “I didn’t see your name in the comments!?”
  • OptinMonster: “300% increase in revenue with a single optin + a neat growth trick from my mastermind!”
  • Guess: “Mary, check out these hand-picked looks”
  • Mary Fernandez: “you free this Thurs at 12PM PST? [guest blogging class]”
  • James Malinchak: “Crazy Invitation, I am Going to Buy You Lunch…”
  • Brooklinen: “Vanilla or Chocolate?”
  • Sam from The Hustle: “I love you”
  • Revolution Tea: “Thanks for helping us”
  • Ryan Levesque: “Seriously, Who DOES This?”
  • Rent the Runway: “Happy Birthday Mary – Surprise Inside!”
  • Jon Morrow: “Quick favor?”
  • Mary Fernandez: “? your detailed results…”
  • Harry’s: “Two razors for your friends (on us)”
  • Digital Marketer: “Did you get your book yet?”
  • Digital Marketer: “G + L + F = 2X Your Sales”
  • Digital Marketer: “You’re Invited”
  • Digital Marketer: “Is this you?”
  • Digital Marketer: “What happens when you’re approved?”

To-The-Point Email Subject Line

MailChimp did a subject line analysis, where they analysed 40 million marketing emails. The analysis found that descriptive and to-the-point email subject lines had the highest open rates.

Yes, simple subject lines that are perceived as “boring” in the industry tend to get really high opens.

So why do we all not just send straightforward emails? What was the point of the whole article above?

Formula for writing a to-the-points subject line: [Number] Lessons [I/We] Learned by [Action You Took]

Example: 100 lessons I learned by Vlogging for 3 years

The thing is, these straightforward subject lines are only to be used once in a while. And your other emails have to be a value bomb! This will make your subscriber used to opening your emails, thanks to the awesome value inside them.

And when the to-the-point subject line arrives, they would be so happy with your content already that they would gladly open your emails.

  • Barack Obama: “Hey”
  • AYR: “Best coat ever”
  • Al Franken: “Yes, this is a fundraising email”
  • “Thanks for Joining – Here’s What’s on Sale”
  • “Top 10 under $10”
  • “212 Blog Post Ideas”

Question Subject Line

We are compelled to answer questions.

When we see a sentence with a question mark at the end, our brains automatically go to find an answer or at least think about what’s being asked.

You can use this to your advantage in your email subject lines.

Questions aren’t just a great way to get your subscribers thinking about something specific; they also feel incomplete on their own. This means that your readers are likely to feel inspired to open your email in an attempt to find the answer.

There’s another reason subject lines with questions in perform well. When you pose a question, your subscribers might not have thought about it at all - but guess what? Now they’re thinking about it.

Questions steer people’s minds in a specific direction without forcing them into something they don’t want to be forced into.

Take a leaf out of Strong Women, Strong Girls’ book and ask your subscribers a question that either they want to answer or that will get them thinking. They ask their readers “Who Was Wonder Woman’s Role Model?”



  • IKEA: “Where do all these toys go?”
  • Brooklinen: “Vanilla or Chocolate?”
  • Ryan Levesque: “Seriously, who DOES this?”
  • REI: “What did you think?”
  • Zillow: “What can you afford?”
  • Sky: “Ready for some festival fun?”
  • Pocket: “Can you snack your way to better sleep?”
  • BuzzSumo: “What backlinks are you getting?”
  • Psychologies: “Do you play enough?”

Cliffhanger Subject Lines

When you’re watching your favorite show on Netflix and it ends on a cliffhanger, you can’t help but watch “just one more episode”.

The cliffhanger concept is incredibly powerful as people want to know what happens next. As humans, we don’t like the unknown and we’ll do anything within our power to actually find out what’s happening.

This is why using a cliffhanger in your subject line can be a great way to encourage your subscribers to click through into your emails.

The easiest way to do this is to make only half the subject line readable and then tack on ellipses at the end to force readers to open up to read the end of the sentence.

GetResponse: “Welcome to the crew! Join us inside the…”

Etsy: “Bring these home…”

Photobox: “Pair your wall art with this…”

Opodo: “Time is running out…”

Action Words For Email Subject Lines

To make your subject lines more impactful, it's important to convey the correct message but also use the correct words according to the intensity of the message. That's where a set of power words can come in handy.

Here are some examples:

  • Improve/improved
  • Increase
  • Update
  • Join
  • Congratulations

You can see a full collection here. We have also listed down the words to avoid so your emails don't land in spam.

Bonus Section: What the Top Influencers are Sending

If you want to become better, you need to keep learning from some of the top people in your space. Thanks to the internet, we now have so many people to learn from right at our fingertips giving us top notch information.

Listed below are some of the top subject lines from a few of our favorite influencers in the marketing industry.

Neil Patel

  • "Be a Better Copywriter: 7 Lessons From 4 Legendary Books"
  • "Don’t Get Fooled: 17 Questions to Ask Before Hiring an SEO Company"
  • "A Step by Step Guide to Modern Broken Link Building"
  • "How to Cut Your Bounce Rate in Half with Interactive Content"
  • "Stop Guessing: Here’s a Social Media Strategy That Works"
  • "How to Create The Perfect Social Media Post"
  • "What Are The Best Times to Post on Social Media"
  • "100 Lessons Learned from 10 Years of Blogging"
  • "How to Structure a Perfect SEO Optimized Page"
  • "How to Influence Purchasing Decisions"
  • "Publishing Your Next Blog Post"
  • "What SEO Used to Be Versus What SEO Is Now"
  • "How to Write a Great Value Proposition"
  • "How to Get 247% More People to Read Your Content"
  • "How to Keep Your Readers on Your Blog Longer"


  • "REMINDER: Last day to upgrade for $100 off"
  • "LAST DAY: Join The Showrunner Course Before It Closes (and Becomes Recurring)"
  • "LAST DAY: Get a Free Migration to Better Hosting at a Lower Price"
  • "Time is Running Out to Join The Showrunner Podcasting Course"
  • "Get Our Proven, Step-by-Step Podcasting Course (While Registration is Open)"
  • "Webinar for you: Why People Fail When Creating Products"
  • "TWO HOURS LEFT: It’s Your Last Chance to Get Our Big Black Friday Discount"
  • "Migrate to Synthesis Free of Charge (Normally $99) This Week Only"
  • "Check out the 2015 Small Business Content Marketing Report"
  • "LAST CHANCE (90 min left): Then Monthly Billing for Rainmaker is Gone"
  • "Reminder: Lock in Monthly Billing for Rainmaker Today (Before It’s Gone)"
  • "Free Webinar: Build an Email List That Builds Your Business"
  • "Get a Massive Discount on the Studio"
  • "Press All-Theme Pack Before the Price Goes Way Up"
  • "ONLY TWO HOURS LEFT … Last Chance to Upgrade for $100 Off"
  • "Upgrade to Authority and save $100 (this week only …)"

Social Triggers

  • "The Proof: 18 people. 18 problems. 18 success stories stories."
  • "How I Got 26,778 Subscribers In 13 Months"
  • "How I Got 4,387 Subscribers In 47 Days"
  • "Am I really the “bad guy?”"
  • "Why I spent $25,000+ on a web design"
  • "97.3% of people said YES"
  • "Get to Yes: How to Make People Buy"
  • "Still need more subscribers?"
  • "How Saying No Will Change Your Life (Plus I’m Hiring 5 People)"
  • "The Secrets of “Profitable Online Courses”10,000 in 30 days?"
  • "Do it once. Use it forever."
  • "You’ll think I’m crazy…Struggling to make more sales? Follow these 2 simple steps…"
  • "If you sell online courses, open this (if you don’t, burn it with fire)"

Flash Sale Subject Lines

Looking for subject lines for your upcoming flash sale?

  • Digital Marketer: "⚡[FLASH SALE] My 11-step business launch plan (and templates)"
  • HP: “Flash. Sale. Alert.”
  • “[Flash Sale] 85% off our Podcast Launch Plan”
  • Wayfair: These rugs are DURABLE (and on sale!) 👟💧🐕

Seasonal Subject Lines

Winter Email Subject Lines:

Warm up the winters with these winter email subject lines.

  • Warm up to winter with us this Saturday
  • Kickstart Your Holiday Shopping with Us!
  • Looking to get ahead of the holiday rush? Early sale starts now!
  • Your winter weather forecast: stress free shopping
  • Our best recipes for beating the cold
  • You don’t need to brave the cold, we deliver!

Summer Email Subject Lines:

Use these email subjects lines for your summer sales.

  • Don’t Miss These Summer Steals & Deals ☀️
  • Summer Treats Start Today
  • 🌼 $10 off our summer beauty scents
  • Old Navy: 60% OFF your summer essential
  • Summer New arrivals we know you’ll love 💖 + 15% Off
  • Surf’s Up! 🌊


I hope this massive list helped you out and gave you the inspiration you needed to write your own subject lines.

Now it’s your turn.

What are some of the top subject lines that you’ve come across and love that would make an awesome addition to this list?

This list is, and always will be, a work in progress. Post your favorite subject lines in the comments below, and I’ll surely add them into this article.


1) What is a good email subject line for a business email?

A good email subject line is something which is short & sweet, makes a genuine promise, tells what is inside, and is highly relevant.

2) What should be avoided while writing email subject lines?

A few things to be avoided while writing email subject lines are: a sender email to which one cannot reply such as a “no-reply” sender name, overt request for donations, spelling and grammatical errors, spam-trap words, all caps, many special characters, and misleading wording.

3) How can I write engaging email subject lines?

Some tips to write highly engaging email subject lines are: generating curiosity, emphasizing urgency, touch on the pain points, ask a question, and preferably use an emoji if it suits.

4) What are the various types of effective email subject lines in email marketing?

Some types of effective email subject lines in email marketing are:

  • Curiosity subject line
  • FOMO (Fear of missing out) subject line
  • The re-engagement/retargeting subject line
  • A witty/funny subject line
  • A social proof subject line