You know that person you had a great meeting with six months ago? The one where you both said "let's keep in touch"? How's that going?
If the answer is "I haven't emailed them since," you're in good company. Most people are terrible at maintaining professional relationships. Not because they don't care, but because they don't have a system.
Building a network is the easy part. Keeping it alive is the real work.
Why Professional Relationships Fade
It's simple. People get busy. The urgent pushes out the important. Sending a check-in email to someone you haven't talked to in three months never feels urgent. So it never happens.
And then six months pass. Then a year. And now reaching out feels weird because it's been so long. So you don't. And the relationship quietly dies.
This happens to everyone. The people who maintain great networks aren't more social or more outgoing. They just have better systems.
The Stay-in-Touch System
Here's the framework. It's not complicated, but it works.
Categorize your contacts. Not everyone needs the same level of attention. Group people into tiers based on how important the relationship is and how frequently you should reach out.
Schedule it. Block 30 minutes every week for relationship maintenance emails. Put it on your calendar. Treat it like a client meeting. During that block, send 3-5 check-in emails.
Track it. Know when you last reached out to someone and what you talked about. This is where most people's systems fall apart because they rely on memory.
What to Say in a Check-In Email
This is where people freeze. "What do I even write?" The answer is simpler than you think.
You don't need a reason to email someone. But having one makes it easier. Here are some natural hooks for stay-in-touch emails.
Share something relevant. An article, a tool, a podcast episode, a trend you noticed. Something that relates to their work or interests.
Hi [Name],
>
Saw this article about [topic] and thought of you. Especially the part about [specific detail]. Curious what you think.
>
Hope things are going well.
That's a complete email. Three sentences. It takes two minutes to write and it keeps the relationship alive.
Congratulate them. Got a promotion? Launched a new project? Won an award? Say something.
Hey [Name],
>
Just saw the news about [thing]. Congrats! That's a huge deal. Really happy for you.
Short. Genuine. Done.
Ask about something they were working on. If you remember a project or challenge they mentioned, follow up on it.
Hi [Name],
>
Last time we talked, you were working on [project/challenge]. How did that turn out? Would love to hear how it went.
This is powerful because it shows you actually listened. People remember that.
Reference a shared experience. If you were at the same event, worked on the same project, or have any shared history, use it.
Hey [Name],
>
Can you believe it's been a year since [shared experience]? Still think about [specific moment or insight] from that. Hope you're doing well.
Emails to Avoid
Some check-in emails do more harm than good. Here's what not to send.
The "just checking in" email with nothing else. If there's no content, no hook, no reason, it feels empty. Always attach something, even if it's small.
The "let's grab coffee sometime" email you send every three months without ever actually scheduling coffee. Either suggest a specific time or don't mention it.
The email that's really a sales pitch disguised as a check-in. People see through this instantly. If you want to pitch, pitch. But don't pretend it's a friendly check-in.
The mass email that pretends to be personal. If someone can tell they're one of fifty people who got the same message, it doesn't count as relationship maintenance.
How to Re-Start a Relationship That's Gone Cold
What if it's been a year? Two years? Is it too late?
Almost never. People understand that life gets busy. And most people are pleasantly surprised to hear from someone after a long silence.
The key is to acknowledge the gap without making it a big deal.
Hi [Name],
>
It's been way too long since we connected. I was just thinking about [something that triggered the memory] and wanted to reach out.
>
How have things been? Last I remember, you were [what they were doing]. Would love to catch up if you have a few minutes.
Don't apologize excessively. Don't explain why you've been out of touch. Just reach out like it's a normal thing, because it is.
Using Email Tracking to Maintain Relationships
Here's a practical tip. When you're sending check-in emails to a large network, it helps to know what's landing and what's not.
Pynglo gives you a dashboard to see which of your emails get opened. If someone consistently opens your check-ins but never replies, that's different from someone who never opens them at all. The opener might just be bad at responding. The non-opener might have changed email addresses or lost interest.
That kind of signal helps you focus your energy on the relationships where there's genuine two-way engagement.
The "Add Value" Mindset
The best relationship maintainers aren't the ones who reach out the most. They're the ones who add value every time they do.
Every email should give something. An insight. A resource. A connection. An honest compliment. A relevant opportunity.
If you consistently add value, people look forward to hearing from you. If you only reach out when you need something, people start avoiding your emails.
Make a habit of collecting things to share. When you read a great article, think about who in your network would find it useful. When you meet someone interesting, think about who they should know. When you learn something new, think about who would benefit from hearing it.
The Follow-Up Framework
When someone responds to your check-in, have a plan for what comes next.
If they suggest a call, schedule it within the week. Don't let it drift.
If they share news, respond to it. Ask a follow-up question. Show genuine interest.
If they go quiet after your check-in, that's okay. Not every email needs a response. The point is that you showed up. They know you're thinking of them. That matters even without a reply.
For more on effective follow-up strategies, check out our guide on how to follow up without being annoying.
Make It a Habit, Not a Project
The biggest mistake is treating relationship maintenance as a project you'll "get to." It's not a project. It's a habit.
Five emails a week. That's it. Twenty a month. Over a year, that's 240 touchpoints with your network. Imagine how different your professional life would look if you did that consistently.
The individual email doesn't matter much. The consistency does. Show up regularly, add value, be genuine, and the relationships will take care of themselves.
Start this week. Pick five people you haven't talked to in a while. Send them something useful. It'll take you 20 minutes. And those 20 minutes might be the highest-ROI thing you do all week.