下面这些的主题行很多都是可以用于外贸开发信信的，但并不是全部都合适，请大家根据自己的情况来选项。帝国速运15710788677英国专线纯电池小包，英国纯电池专线查询，英国纯电池专线追踪

另外，也希望这些经过验证的优质主题行可以帮助你在写外贸开发信时给你更多启发和灵感。

01 用于向潜在客户介绍优惠的开发信邮件主题行

• Earn double points today
• Feeling [Emotion] I can help!
• Your free [promotion] is waiting for you
• A complimentary upgrade with every purchase
• Your all-access pass to our upcoming webinar series
• I’m ready to listen
• Come celebrate with us!
• We’re saving a spot for you.
• Professional development opportunity

02 数据驱动的开发信邮件主题行

• The real reason [X] needs [Y]
• The data behind [event]
• The tool 78% of managers want
• The 12 reasons your email isn’t getting opened
• Science says you’re more likely to buy based on these 5 factors.
• 98% of moms want this for Mother’s Day
• 5 tips, tricks, and trends to ensure fast growth
• Our most complete guide to [industry]
• What’s affecting [X] this week

03 让你的目标受众感到好奇的开发信邮件主题行

• Don’t miss out!
• Quick question
• What I found on your website
• You were just matched.
• Here’s your chance:
• I wouldn’t ask if it weren’t important.
• What are you missing?
• I’d love to help you, [name]
• These 4 brands have a story to tell.

04 基于流行文化的开发信邮件主题行

• What your business can learn from the royal family
• Three clever marketing lessons from the Super Bowl
• Go Spurs go!
• 6 reasons you want Arya Stark on your [department] team
• Business management fixer-upper, Joanna Gaines style

05 电商业务中最引人注目的的邮件主题行

• It’s almost gone
• I didn’t want you to miss out.
• Don’t let FOMO ruin your weekend.
• A [better/smarter/faster] way to [reach a specific goal]
• Free shipping ends tonight.
• Almost finished
• Live training – starting now!
• Don’t wait
• Get our [X] package with purchase – today only

06 基于第三方背书的邮件主题行

• [Friend name] mentioned you
• Our mutual connections at [vendor]
• The [mutual group] LinkedIn group
• A friend of [friend’s name]

07 基于让生活更舒适来吸引人们的开发信邮件主题行

• Download our white paper
• How we helped [customer] save $30,000
• Try out my new custom font.
• We just released new updates.
• Offering a website audit
• 100 cold email subject lines you can use
• Help me help you
• Learn to [talent] ridiculously well
• Steal my marketing strategy

（来源：红板砖开发信）