These email subject lines intentionally piques curiosity and leaves a gap that your subscriber needs to fill. They cannot help but want to open your email to satisfy their curiosity.
29. “Hey”
30. "Everything you wanted to know about ___ but were too afraid to ask"
31. "As You Wish"
32. 'I love everything in this email!
33. "Not Cool, Guys"
34. "Black Friday shoppers are the worst customers"
35. "Question about {insert goal}"
36."Idea for {insert topic of interest}"
37. "Know this about {insert topic of interest}?"
38. "I promise it’s worth it..."
39. “Don’t Open This Email”
40."I have good news and bad news..."
41. "Sales increase , Refunds decrease , Retention increase"
42. "Your new favorite ___ tool..."
43. "I’m pulling the plug..."
44. "{insert desired result in caps} (on a “shoestring” budget)"
45. "Tomorrow’s the day..."
46."Is this you?"
47. "You’re Invited"
48. "I knew I was right..."
49. "___: Why you’re stuck"
50. " are not the answer..."
51. "Exciting announcement (and special invitation)*"
52. “When’s the last time you...”
53.“Wanna Know a Secret?”
54. "Yep, that just happened..."
55. "She sold ___ for $___ each. Here’s how..."
56. "Bad news... closing down"57. "Lethal Combo: ___ + ___"
58. "Open up for our best content"
59. "Forget ___ — this stuff works!"60. “What They Eat In Prison”
61. “Hologram Shorts?!”
62.“A faster donkey”
63. "your detailed results..."
64. "Why I spent ${a large amount of money} on a ___"
65."# Million Dollars"
66. "The BIG secret behind ___"
67."Surprise! When {insert common opinion} is Bad Advice"
68. "{person A} vs {person B}, who does ___ better?"
69. "Impossible! {insert name of expert} just leaked his secret to ___!"
70. "You’ll like this one"
71. "Panic"
72. "Threatened and scared, she turned to an angel"
73. "How to get 12 hours out of an 8 hour day"
74."Become a ___ Mogul With This “Game Changing” System"
75."How a {insert random object} changed my life"
76."GREAT news (here’s why)"
77. "___ has been hacked"
78. “Seriously, Who DOES This?”
79. "# sneaky ___ tricks"
80. "# bizarre ___ selling online"
81. “# Secret Tactics for Breathing New Life into ___”
82. “#% increase in revenue with ___!”
83. "# secrets of wildly successful ___"84."# ___ You Can’t Live Without, # 5 Is My Bible!
85."The # Underused Components of ___"
86. "Only Open If You Use ___"
87. “A must watch new movie I just put out on YouTube???”
88. “What does it take to get me to dump ice water on my head? Find out here!”
89. “The truth about ___...”
90. “Do NOT ___...”
91. “Are you in or out?”
92. “The ULTIMATE ___ tool”
93. “Your ___ is broken...”
94. “The Scientifically Proven Best Time to ___”
95. “The truth”
96. “Me, me, me, me, me”
97. “Cold, Hard Numbers”
98. “Lies in ___”