Best Subject Lines for Cold Emails

We have mentioned a lot about cold emails and subject lines in our previous posts. So what are the best subject lines that you could use for your cold emails which would make the prospect open your otherwise boring emails?

Here are some examples of few of the best cold email subject lines –

Curiosity Subject Lines

 Curiosity is a quality related to inquisitive thinking such as exploration, investigation, and learning in a human being. A subject line which builds curiosity inside a person’s brain can definitely make him open that email.

subject lines

One can build curiosity in their subject lines by just mentioning something weird or unusual or just by asking a question. Here are few examples –

  1. Modcloth: “Contains graphic material.”
  2. The Hustle: “Look what you did, you little jerk…”
  3. Social Media As Social Action: “Everyone Is Gay
  4. Manicube: “*Don’t Open This Email*”
  5. Mary Fernandez: “ a surprise gift for you! {unwrap}”
  6. Thrillist: “What They Eat In Prison”
  7. R/GA Group Planning Director Sean Miller and Google Head of Creative Innovation John Militello: “Why Your 5-Year-Old Is More Digital Than Most CMOs
  8. Grubhub: “Last Day To See What This Mystery Email Is All About”
  9. Why You Need to Think Local: “Your Marketing Sucks
  10. The Hustle: “A faster donkey”

More Insight –

All About Email Marketing (Part 1)

Ways to Write a Cold Email (Part 1)

Funny Subject Lines

There is not a single soul on this planet who wouldn’t like a good pun or a joke.

Humor can wake up the kid from within as well as bring a smile on anyone’s face; so why not on your prospect’s face? A humorous subject line can really stick out among the dry, dull emails surrounding it and save you from going to the bin. Here are few examples –

  1. Sperry Van Ness: “Were we boring you?”
  2. Gozengo: “NEW! Vacation on Mars”
  3. JetBlue: “Land wander-ful low fares now!
  4. Eater Boston: “Where to Drink Beer Right Now” (Sent at 6:45am)
  5. Enterprise Delight via Multitouch: “Please Touch Me!
  6. Groupon: “Deals That Make Us Proud (Unlike Our Nephew, Steve)”
  7. Mailchimp:  “Steve, where are you?”
  8. The Muse: “We Like Being Used”
  9. ESAPI: “Defense Against the Dark Arts”
  10. Baby Bump: “Yes, I’m Pregnant. You Can Stop Staring At My Belly Now.”

Cure their Pain

Be good at finding their pain. Not just any pain, but a pain whose solution is your company.

If a person notices a cure to a pain that they’re suffering with, which could be a simple ‘broke’-Out of money, or some kind of material that are in need of.

Here are few examples –

  1. Uber: “Since we can’t all win the lottery…”
  2. Sephora: “Products the celebs are wearing”
  3. IKEA: “Get more kitchen space with these easy fixes”
  4. Guess: “Wanted: Cute and affordable fashions”
  5. Rue La La: “Will you accept this rose? Sorry, *sale?”
  6. Duolingo: “Learn a language with only 5 minutes per day”
  7. Pizza Hut: “Feed your guests without breaking the bank”
  8. HP: “Stop wasting money on ink”
  9. Sephora: “Your beauty issues, solved”
  10. Pop Physique: “Get Ready. Keep the Pie Off Your Thighs Returns.”


FOMO basically means Fear Of Missing Out.

It’s the anxiety caused in a person, that an exciting or interesting event may currently be happening elsewhere, often aroused by posts seen on social media.

Here are few examples to create that psychological fear, FOMO –

  1. Coldwater Creek: “Going… going… 70%off Ultimate sale is almost gone! –Coldwater Creek”
  2. JetBlue: “You’re missing out on points.”
  3. Guess: “Tonight only: A denim lover’s dream”
  4. Jeremy Gitomer: “How Have You Progressed Since the Third Grade?”
  5. Warby Parker: “Uh-oh, your prescription is expiring”

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Navaneetha Suresh

Navaneetha Suresh

Navaneetha, commonly known as "nav", loves to read, play badminton, play the keyboard and sing but when she's not doing any of those, she loves to write. What started as a high school hobby to write is now her ongoing passion.

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