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。
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。
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
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
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.
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
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
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]
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
