How to write engaging subject lines for reconnecting emails — Stripo.email - The Legend of Hanuman

How to write engaging subject lines for reconnecting emails — Stripo.email


This article examines definitions, steps, and best practices for creating catchy subject lines for reconnecting emails. We also review common challenges and provide examples for guidance and inspiration.

Do you still “circle back” to reconnect with your dormant audience or partners? This may be an appropriate time to try another, more effective way to catch up with them.

Spark the recipient’s curiosity, trigger an emotion, and make people feel your words using one element — the subject line. Do you have any ideas about how to significantly increase the open rates of your reconnecting emails? Our expert does!

Role of the subject line in reconnecting emails

The only purpose of a subject line is to make the recipient curious enough to open and read the email. That means your subject line needs to either generate significant curiosity or convey enough relevance to make it a must-open.

Josh Spector

Reconnecting email subject lines are the first point of contact after a pause. With just a few words, they may trigger positive emotions and remind people what they miss out on. 

If the recipient sees a reason to revisit their professional relationship and opens your emails, the subject line plays its part well.

Subject line peculiarities for various types of reconnecting emails

Email subject lines depend heavily on the target audience and your intended goal. Do you strive to re-engage with valued customers or perform catch-up with colleagues? 

I suggest that we review the main subject line differences.

Existing customers or subscribers

One of the best ways is to create a curiosity gap by leaving out a key piece of information. For example: “This blew my mind” will get more opens than “This new Seth Godin book blew my mind.”

Josh Spector

An element of intrigue fosters genuine interest in reconnecting or checking what this is about. Keep the aces for the email body to ensure the subject does not spoil the text.

Example: “Check your past year’s impressive results.” A mention of a past conversation or experience with a mystery element is key to sparking curiosity and capturing the reader’s attention.

A reconnecting email subject line to a customer

Former colleagues

Reconnecting email subject lines for colleagues usually have a professional yet friendly tone and mention a shared interest or project. 

However, if a casual tone is acceptable at the company level, you may use a trick similar to that of customers to get people to read your message.

Example: “Remember project X 4 months ago? What a huge success!” or “It’s been 2 months since [project name], let’s catch up.” Each subject line captures the recipient’s attention, evokes memories, and provides context.

A reconnecting email subject line to a former colleague 

Approaches to writing reconnecting email subject lines

Whether you are building relationships with colleagues or customers, a compelling subject line provides a gateway to your message. 

Together with the invited content strategist, we have explored the most effective ways to write subject lines for reconnecting emails.

Consider relationships with the recipient

The sender name is as important (maybe more) than the subject line, so the caliber of your relationship with the recipient matters more than the subject line itself. For example, the single most opened email subject line ever sent by the Obama campaign was an email from him with the subject line “Hey.”

Josh Spector

If you reconnect with someone familiar, try not to overuse variables. They do not add any personal touch but can make the subject line sound robotic. 

Consider who you are contacting and whether a few mentions of the name or company are relevant or can be extra.

Hint at the intent

A good email subject line creates curiosity but hints at your intent. Whether you want to share product updates or exciting news with customers or stay connected with an old contact, add a few catchy details to your subject line.

Here are email subject line examples targeted at colleagues and customers:

  • variant for a client: This subject line gains the recipient’s interest by mentioning their impressive results and hints at the email’s purpose.

A reconnecting subject line to a customer with an intent

  • variant for a colleague: This subject line states the sender’s goal and mentions personal connections with the recipient;

A reconnecting subject line to a colleague with an intent

Ask a question to provoke thoughts

Your perfect subject line does not have to be a narrative sentence. A question mark in the subject line achieves a 39.52% open rate, creates a sense of curiosity, and instantly grabs the recipient’s attention. 

A follow-up email after a networking event or missed conversations suits these queries best.

Reference shared history or past interactions

A common ground with recipients in networking increases the chances of a reply by bringing them back to a shared experience. 

Let’s compare a few personalized email subject lines and see which subject line provides more clarity:

  • personalized variant: This attention-grabbing subject line works even in the crowded recipient’s inbox because it has a date reference, a mutual project, and a strong call to action;

A reconnecting subject line with a mention of the shared history

  • non-personalized variant: The same subject line for reconnecting email with a colleague becomes too vague without details. In this case, more symbols do not indicate more value.

A non-personalized reconnecting subject line

Think of personalization as a way to rekindle memories, not just a name mention. This way, you remind recipients of your shared history and no longer appear as a stranger.

Mention a benefit

If you prefer a more standard approach, a subject line for reconnecting email that mentions a benefit could work with your potential contacts. Moreover, recent research explored particular words and their influence on open rates:

  • bonus: A subject line with the word “bonus” achieved a 44.51% open rate;
  • prize: A subject line that mentions the word “prize” resulted in a 47.58% open rate;
  • invitation: A subject line that includes the word “invitation” had a 56.76% open rate;
  • offer: The word “offer” resulted in a 37.97% open rate for a subject line;
  • discount: A subject line that mentioned a discount achieved a 39.83% open rate.

A reconnecting email subject line that mentions a benefit

While a discount is not a remedy for all networking contacts, you may highlight the benefit of reconnection.

Respect silence

I do a re-engagement campaign for people who haven’t opened my newsletter recently. The last email they get from me has the subject line: “This is the last time you’ll hear from me.” If that doesn’t get people to open an email, nothing will, and I can remove them from my list.

Josh Spector

Bombarding recipients with reconnecting emails while they remain silent may be a straight way to spam. While dedication is appreciated, try to balance persistence to avoid negative associations with your name or brand.

A/B testing for reconnecting email subject lines

A/B testing helps determine which approach to writing subject lines resonates with the audience. The Stripo AI subject line generator comes in handy.

In addition to creating subject lines that align with your needs, the generator offers alternatives for A/B tests. Here are the steps to use it:

  1. Go to the AI subject line generator.
  2. Enter the subject line in the text field.
  3. Specify the settings by choosing a style, capitalization, emoji usage, and language.

    The settings of the AI subject line generator in Stripo

  4. Preview, copy, or improve the best subject line options.

    AI-generated subject line variants

A/B testing may be challenging when you constantly need to create new variants. Our AI subject line generator accelerates the process, so you only need to choose the best-fitting options.

Common subject line pitfalls

Automatically inserting the recipient’s name into the subject line is overrated and often does more harm than good. Most recipients know that it’s automated and that you’re trying to trick them into thinking you sent them a personalized email.

Josh Spector

Overusing the recipient’s name or other static data does not attract much attention when tons of offers flood the inboxes. Try to work with emotions as they encourage an email open as much as any other approach.

Apart from over-personalization, let’s discuss more challenges and tips on how to handle them:

  • overloading with information: Subject lines up to 70 symbols achieve a maximum open rate of 43.38% open rate. This is a crucial factor on mobile devices;
  • overusing “Re:” and “Fwd:” prefixes: While these prefixes often mimic active conversations, overusing or falsely adding them creates mistrust;
  • ignoring the email context: Effective subject lines highlight the message content and do not mislead readers, which can ensure your credibility.

Your reconnecting emails will feel more intentional, relevant, and respectful if you address these concerns.

25 examples of subject lines to drive results

Now that you have walked through the creation steps and seen common pitfalls, we can move to the subject line examples for your email templates.

15 networking email subject line examples

Since there may be different reasons for networking, we have divided the following examples into two categories for your convenience: examples for colleagues and examples for business partners.

Examples for colleagues

Reconnecting with former colleagues could be a new beginning for collaborations, networking, or simply strengthening relationships.

  1. “Remember our success with [shared project]? Let’s reconnect.”
  2. “[Mutual connection] reminded me of our collab. Shall we catch up?”
  3. “[Recipient’s name], let’s collaborate on [new project name] and repeat our previous success.”
  4. “Got any ideas on [relevant industry news]? Let’s catch up!”
  5. “Our collab on [shared project] inspires me. Let’s revisit it.”
  6. “Celebrating [shared milestone]? Would love to catch up!”
  7. “[Recipient’s name], why not reconnect for a new project?”
  8. “Let’s plan our next big success after [past project].”

For business partners

Reconnecting emails could be your way to transform short-term partnerships into long-term partnerships. These examples may inspire you to catch up with your business partners.

  1. “Let’s revisit [past project] and explore how we can collaborate on [new project].”
  2. “Big changes at [your company name]. Let’s collaborate!”
  3. “[Past project] was just a beginning. How about a collaboration on [new project]?”
  4. “We’ve achieved a lot with [previous collaboration]. Can we catch up?”
  5. “Let’s explore how [your company] and [recipient’s company] can grow together.”
  6. “Let’s revisit our collaboration on [past project] and explore new opportunities.”
  7. “How [new shared goal] could benefit [your company] and [recipient’s company].”

10 customer reconnecting subject line examples

Reconnecting emails are not always an aspect of networking; sometimes, they serve as a way to re-engage with customers. 

We prepared examples of subject lines for this occasion:

  1. “Your feedback was key. Here’s how we’ve improved.”
  2. “[Recipient’s name], your success is still our priority. Let’s catch up.”
  3. “Let’s repeat your [past year’s achievement] and see how you can beat it.”
  4. “[Recipient’s name], have you seen [your company name] latest [product/service]?”
  5. “Time flies when you are preparing updates. Check out your absolute new favorites.”
  6. “[Recipient’s name], let’s make this year your best yet with [your company].”
  7. “[Your company] is evolving. Here’s what it means for you.”
  8. “[Recipient’s name], your results were outstanding. We have prepared key points.”
  9. “Your journey with us is what motivates us to grow. Here’s how you influence [your company].”
  10. “[Your company] has changed this past month. Let’s see what we achieved!”

Wrapping up

The subject line of the reconnection email is the first step in reigniting relationships with clients, former colleagues, or partners. Adding intriguing elements and questions or referencing a shared experience and a benefit can increase your open rates. Moreover, with A/B testing up your sleeve, you obtain the most effective options that are aligned with your audience.

We hope these tips and examples have inspired you to refresh your reconnecting subject lines and try new approaches. Good luck!

Create your reconnecting emails that win people back with Stripo


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