61+ Best Influencer Collaboration Email Subject Lines [2024]

Pat Walls

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Updated: January 20th, 2022

If you're looking to boost your email open rates and increase sales, your email subject line is the first (and most important) step in achieving those goals.

Did you know that 33% of email recipients open emails because of an engaging subject line?

That's why it's critical to craft a catchy email subject line that will get you the traffic and conversions you deserve.

We've put together a list of 61+ best influencer collaboration email subject lines [2024].

Some are proven examples from other successful campaigns, and some are creative ideas to inspire you.

Creative Email Subject Line Ideas

Invitation to be our X
I have an allergy friendly recipe for you to try
Your latest work is awesome, [NAME]! Let me pick your brain 🤓
Paid Post ???? Do you do brand deals?
Hi, it’s [YOUR NAME]. Let’s continue our discussion further
Our team needs you in X!
Special proposal for Xs!
Referred by [MUTUAL CONTACT NAME] to discuss [TOPIC]
Have you tried bunny skin care products?
Can we pay you to post? ????
The X% profit in Y months
Get the new X before anyone else sees it!
I want to give free stuff to your audience
Exchange ideas with fellow X at Y!
The registration for X ends in Y days
I want to talk more about your small business loan post
You have such extensive experience about [TOPIC], would love to hear more
I love your post on organic homemaking
Xs needed for the Y project!
I see your kids are the perfect age for this event!
I have some different insights on the topic you recently covered
[NAME], I really found your piece inspiring – would like to discuss the topic further
Are you interested in curation on X?
Hi [NAME], let’s collaborate on this great project
Urgent: Paid Posts ???? {Brand Name}
Business Inquiry: {Brand Name}
Sponsorship Opportunity ???? {Brand Name}
{Brand Name} <-> {Influencer Name} = ❤️
Inspired by your post on [SOCIAL MEDIA]
Could you provide us a review about X?
I’m a Sagittarius too!
It was an honor talking to you in that meetup, [NAME]
A promising startup looks for team members!
Just thinking about what you told me during that meetup. Care to discuss it further?
Would you like to get featured in our X event?
Hey [NAME] 🙋‍♂️. I would love to hear your opinion on [ENTER TOPIC]
[MUTUAL CONTACT NAME] told me you know a lot about [TOPIC]. Hope we can discuss it sometimes
No Subject (sometimes less is more)
Are you interested in soon-to-be X?
Collab Opportunity: {Influencer Name}
Hi, it’s [YOUR NAME]. [MUTUAL CONTACT NAME] introduced us at that event.
Don’t miss the X event!
Let’s talk partnership
Reaching out for partnership opportunity
The unique opportunity to create X together!
Searching for a possible collaboration on X
Inquiring about brand placements for {Brand Name}
HI, [NAME], great chatting with you at that event
I have just read your article on [PUBLICATION], and I have a few questions about it
Looking for brand deals? {Brand Name}
Looking for possible collaboration on X
Could you give us feedback, please?
I have a dress I want to send you
Become a co-organizer of X!
The benefits of X for you
Just read your opinion on [TOPIC]. Wow!
Get in my blog
Searching for future partners on X
Hey, [NAME], I enjoyed our talk so much. Ping me when free to talk some more
We’d gladly be your partners on X
[NAME], [MUTUAL CONTACT NAME] friend here. We’ve met the other day

GUIDE: How To Write A Great Subject Line

As we mentioned above, crafting a catchy subject line is critical to the performance of your email campaign.

While just a few words may seem like a small piece of your overall message, this is the first impression your audience will have before they decide whether to open your email.

If your subject line isn't engaging or appealing enough, there's a chance it could get buried in your reader's inbox.

Let's go over the proven tips on how to craft a subject line that boosts engagement:

What makes a great subject line?

First, let's discuss the fundamentals of creating a great subject line:

Spark interest and curiosity
A clear and urgent call to action
An offer/intriguing discount
Personalization (this can be done by sending out different versions of emails to subscribers based on their preferences)
Relevance - make sure your subject line covers the current trends and topics within your industry

5 Tips To Crafting a Great Subject Line

Now, let's dive into the specifics of how to create a great subject line for your next campaign:

1. Use a familiar sender name

Although this may seem obvious, it's a piece many marketers miss the ball on.

Your readers want to feel like your email is coming from a human and not a corporation or automated system.

One of the easiest and most effective ways to do this is by changing the sender's name to YOUR name or someone in the company that is well known.

Here's a great example of this from Marketing Examples

Pro Tip

Avoid the "no-reply" sender name at all costs. This makes your email feel unfamiliar, unapproachable, and less personable.

2. Keep your subject short and to the point

If your subject line is too long, it will get cut off, which could impact your reader's chances of opening your email.

The rule of thumb (for both mobile and desktop) is to keep your subject line under 50 characters.

3. Add personal touches to your subject line

If you have access to information about your subscriber (ie. name, location, etc), you can use this to benefit your subject line and catch your readers attention.

It's important not to go overboard here, but adding even the simplest touch such as their name can build trust and rapport.

Here's a great example of a personalized email + offer I received from BarkBox with my dog's name in the subject line:

4. Avoid making any false promises

Your subject line makes a commitment to your reader, so it's important you don't stretch the truth just to simply get more opens and clicks.

In the grand scheme of things, making false promises will end up hurting your open rate as your readers will lose trust in you.

5. Give them a sneak peek of what's inside

Telling your subscriber what is inside helps with open and clicks.

For example, if you're providing your reader with a free guide or e-book, consider making your subject line something along the lines of:

"Your FREE marketing e-book awaits!"

Conclusion

If you want your email campaign to perform well, it all starts with your subject line.

Think about the emails you receive in your inbox and what makes you click vs what gets buried - odds are, the same habits go for your customer.

We hope you enjoyed our guide + list of 61+ best influencer collaboration email subject lines [2024].

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Pat Walls