It’s Monday morning. You’ve just had your first sip of coffee, opened your inbox, and BAM—there it is, a message so unprofessional it’s practically begging to be framed as a “what not to do” example in an email etiquette class. You cringe, close it, and wonder, “Did they really just send that?”
Emails are a crucial part of modern communication, especially in the professional world. But one poorly written email can make you look like a complete rookie or, worse, someone who doesn’t care. Whether it’s the casual “Hey, sup?” to your boss or that time you hit “Reply All” by accident, we’ve all been there. But let’s learn from these missteps and dive into some classic examples of unprofessional emails—and how you can avoid sending them.
To help you avoid these pitfalls, I’ll also include revised examples for each bad email so you know how to turn things around.
Chapter 1: Why Poorly Written Emails Matter (A Lot)
We get it—writing emails can feel like a tedious task, especially when you’re trying to juggle a million other things at work. But here’s the reality: poorly written emails can have real consequences. Whether it’s an important client or your boss, sending a messy, confusing, or overly casual email can lead to misunderstandings, missed opportunities, and—let’s face it—damage to your professional reputation.
Think of your emails as a reflection of your personal brand. Every email you send is a mini-representation of you, so make sure it’s polished and clear.
Chapter 2: Types of Poorly Written Business Emails (Avoid These at All Costs)
Before we dive into specific examples, let’s break down the main types of poorly written business emails. These are the classic offenders that can derail communication and make you look unprofessional.
1. The “Too Casual” Email
This is the kind of email that reads more like a text message between friends than a professional communication. It’s full of slang, emojis, and an overly relaxed tone, often ignoring basic email etiquette like greetings and sign-offs.
Example 1:
- Subject: “Heyyy 😊”
- Body: “Yo boss, sup? Just checking in on that report you wanted. Think I’ll get it to you soon-ish. Catch ya later!”
Why it’s unprofessional: Too many informalities, unnecessary emojis, and vague wording. You want to be friendly, but not sound like you’re texting from a beach party.
Revised Example:
- Subject: “Report Update”
- Body: “Hi [Boss’s Name], I wanted to follow up on the report you requested. I expect to have it completed by [date]. Let me know if you need any additional information.”
Example 2:
- Subject: “Just a quick note…”
- Body: “Yo, what’s the latest on that contract? No rush, but thought I’d check.”
Why it’s unprofessional: It’s informal, unclear, and suggests a lack of urgency when there might actually be one.
Revised Example:
- Subject: “Contract Status Inquiry”
- Body: “Hi [Name], I hope all is well. I wanted to check in on the status of the contract we discussed. Is there an expected timeline for completion? Please let me know if there’s anything I can provide to help move things forward.”
2. The “Too Formal, I Sound Like a Robot” Email
On the flip side, some emails are so formal and full of jargon that they feel cold, robotic, and overly complicated.
Example 3:
- Subject: “Respected Sir/Madam”
- Body: “I hope this email finds you in good health and high spirits. I am writing to inquire about the aforementioned report, which you requested at your earliest convenience. I humbly await your response.”
Why it’s unprofessional: It’s overly stiff and detached, making it feel distant and formal to the point of awkwardness.
Revised Example:
- Subject: “Follow-Up on Report Request”
- Body: “Hi [Name], I hope you’re doing well. I wanted to check in on the report you mentioned. Please let me know when it’s convenient for you to review it.”
Example 4:
- Subject: “Request for Your Esteemed Approval”
- Body: “Good day. It is with great pleasure that I submit this document for your esteemed review and approval at your earliest convenience.”
Why it’s unprofessional: Over-the-top language makes it feel insincere and out of touch with how people communicate today.
Revised Example:
- Subject: “Document for Review”
- Body: “Hi [Name], I’ve attached the document for your review. Please take a look and let me know if any changes are needed.”
3. The “Oops, Wrong Person!” Email
Then there’s the nightmare scenario of sending an email to the wrong person—especially if that email contains information that wasn’t meant for their eyes.
Example 5:
- Subject: “Lunch plans”
- Body: “I swear, if Karen sends me one more email about that project… Anyway, see you at noon?”
Why it’s unprofessional: Venting about coworkers in an email is never a good idea—especially if you accidentally send it to Karen.
Revised Example:
- Subject: “Lunch at Noon?”
- Body: “Hi [Name], I wanted to confirm if you’re still available for lunch at noon. Looking forward to catching up!”
Example 6:
- Subject: “Following up on that job application”
- Body: “I haven’t heard back from you guys. What gives?”
Why it’s unprofessional: Aside from being sent to the wrong person (ouch), it’s way too aggressive for a job inquiry. Patience is key.
Revised Example:
- Subject: “Job Application Status Inquiry”
- Body: “Hi [Hiring Manager’s Name], I wanted to follow up on the status of my application for the [Position Title] role. I’m excited about the opportunity and look forward to hearing back from you soon.”
4. The “Reply All Nightmare” Email
The dreaded “Reply All” button strikes again! This happens when someone replies to an email thread and accidentally sends their response to the entire group, often with personal or irrelevant information.
Example 7:
- Subject: “Re: Company Update”
- Body: “Is this relevant to me? I don’t have time for this.”
Why it’s unprofessional: Oops. You just hit “Reply All” and now everyone from HR to the CEO knows you don’t care about company updates.
Revised Example:
- Subject: “Re: Company Update”
- Body: “Hi [Sender’s Name], thank you for the update. I’ll review this and let you know if I have any questions.”
Example 8:
- Subject: “Re: Happy Birthday, John!”
- Body: “Who’s John?”
Why it’s unprofessional: Not only does it show a lack of attention to company culture, but you’ve also now broadcasted your confusion to the entire office. Awkward.
Revised Example:
- Subject: “Re: Happy Birthday, John!”
- Body: “Hi [Team], happy birthday, John! I hope you have a great day.”
5. The “Grammar Police Are Coming for You” Email
This type of email is full of grammar mistakes, typos, and spelling errors that distract from the message. Sure, everyone makes mistakes, but when your email looks like a rough draft, it gives off an unprofessional vibe.
Example 9:
- Subject: “Urgent: Misteak in the report!!!”
- Body: “Hi their, I fount a misteak in the report and need to corect it ASAP. Please advise.”
Why it’s unprofessional: Typos and grammatical errors make you look sloppy and unprepared. You can’t expect others to take you seriously if your emails are full of mistakes.
Revised Example:
- Subject: “Urgent: Error in the Report”
- Body: “Hi [Name], I found an error in the report and wanted to bring it to your attention. I’ll make the necessary corrections and send an updated version shortly.”
Example 10:
- Subject: “Check out these tips”
- Body: “Here’s a few tips for you’re report. Their really helpful.”
Why it’s unprofessional: Basic grammar errors like confusing “your” and “you’re” are instant credibility killers. People might not take you seriously if you can’t get the fundamentals right.
Revised Example:
- Subject: “Check Out These Tips”
- Body: “Here are a few tips for your report. They’re really helpful!”
6. The “Too Much Information” Email
While it’s nice to be personable, some people take it too far by oversharing irrelevant personal details. This leads to overly long, convoluted emails that lose sight of the actual purpose of the message.
Example 11:
- Subject: “Update on the project”
- Body: “So, I woke up this morning and my cat was sick. After spending three hours at the vet, I finally got back to work. Anyway, about the project…”
Why it’s unprofessional: Oversharing personal information makes the email feel cluttered and distracts from the main point. Plus, it’s just not necessary.
Revised Example:
- Subject: “Project Update”
- Body: “Hi [Name], I wanted to give you an update on the project. We’re making progress and should have the next steps ready by [date]. Let me know if you need anything in the meantime.”
Example 12:
- Subject: “Meeting Agenda”
- Body: “I had this dream last night about our meeting, and let me tell you, it was wild. Anyway, I think we should discuss the following topics…”
Why it’s unprofessional: While creativity is good, there’s a time and place for personal stories—and your work email probably isn’t it.
Revised Example:
- Subject: “Meeting Agenda”
- Body: “Hi [Team], here’s the agenda for our upcoming meeting: [list topics]. Looking forward to discussing these with you.”
Examples Of Brand Email Blasts To Never Send
1. The “Buy My Stuff” Email (AKA: The Hard Sell That Feels Like a Sleazy Salesman)
Ever get an email that’s immediately pushing you to buy something? No introduction, no value, just “Buy Now!”? It feels a little like someone shoving a flyer in your face on the street. This kind of email typically gets an eye roll and a quick “delete.”
Why It’s Bad:
People don’t want to feel like they’re being pressured into buying something. If your email screams “sell, sell, sell!” right out of the gate, it comes across as pushy and desperate. No one likes desperate. Even when we’re hungry for attention, we at least try to hide it. Brands, take note.
Better approach: Lead with value. Share some helpful tips, advice, or even humor before you ask people to buy something. You’ll be surprised at how much goodwill you can build with your audience by not immediately asking for their credit card.
Imagine if you walked into a store and the salesperson yelled, “BUY SOMETHING!” as soon as you stepped in. I’d be running for the door. Same goes for your inbox.
2. The “Oops, We Messed Up” Fake Apology Email
You’ve probably seen this one before. A company sends out an email apologizing for something, but you’re not really sure what they’re apologizing for. More often than not, it feels like a poorly disguised marketing ploy to get you to open their email. The “Oops!” subject line is basically the digital version of “Hey, I’m vulnerable, so now you like me, right?”
Why It’s Bad:
People don’t like feeling tricked. If you didn’t actually make a mistake, don’t pretend like you did just to get someone to open your email. This comes off as insincere, and the last thing you want is for your audience to feel manipulated.
Better approach: If you’re genuinely apologizing, make it real and own up to the mistake with transparency. If not, don’t fabricate a reason to apologize just to grab attention. People appreciate honesty far more than fake vulnerability.
Think of that one friend who’s always apologizing for things they didn’t do. Annoying, right? Same principle applies here.
3. The “No-Value Newsletter” Email (Full of Fluff and Nothing Else)
Newsletters are great—when they actually provide value. But when a brand sends a newsletter that’s nothing but fluff and irrelevant information, it leaves you wondering why you bothered opening it. The email equivalent of a filler episode in a TV series, these newsletters often end up ignored or unsubscribed.
Why It’s Bad:
When people open your email, they want to feel like they got something out of it—whether it’s useful information, an exclusive offer, or even a laugh. If your email is just a bunch of filler, it’s a waste of their time and yours.
Better approach: Only send emails when you have something worth saying. Make sure every piece of content in your newsletter serves a purpose and adds value to your subscribers’ lives.
I once got a newsletter that was literally two sentences long and said nothing but “Hey, just checking in!” Thanks for wasting 10 seconds of my life I’ll never get back.
4. The “Wrong Name” Email (Hi [FIRST NAME])
Oh, the classic [FIRST NAME] fail. You open an email expecting to see your name, and instead, you’re greeted by an embarrassing placeholder that never got swapped out. Instant turn-off. Suddenly, you feel like just another cog in the email marketing machine.
Why It’s Bad:
If you’re going to use personalization, get it right. When you mess up, it’s obvious you’re not paying attention, and it can feel like you’re treating your subscribers as numbers, not people. Plus, it just looks sloppy. We’re all better than that, right?
Better approach: Test your emails before sending them. Seriously, just send a test email and make sure everything works as it should. It takes five minutes, and it could save you from embarrassing errors that make your brand look unprofessional.
We’ve all been there—getting someone’s name wrong in person is embarrassing enough. But at least in person, you can laugh it off. In email? Not so much.
5. The “Overly Fancy” Design Email (Too Much of a Good Thing)
Picture this: you open an email and it’s packed with flashy GIFs, over-the-top fonts, and way too many colors. It’s like the email is trying way too hard to be cool, but instead, it’s overwhelming. Sometimes less really is more.
Why It’s Bad:
When your email is more style than substance, it can be hard for the reader to focus on the message. Flashy designs might look cool, but if they distract from your content or make the email hard to read, it’s counterproductive.
Better approach: Keep your design simple and easy to navigate. Use visuals to support your message, not distract from it. And please, for the love of inbox sanity, avoid neon-colored fonts.
Remember those MySpace pages back in the day that were so decked out with glittery backgrounds and music you didn’t ask for? Yeah, we don’t need to bring that vibe to emails.
6. The “Never-Ending” Email (Are You Done Yet?)
We all love a good story, but when your email goes on and on… and on… and on, it can quickly turn into a snooze-fest. I’ve gotten emails that feel longer than some blog posts, and by the halfway point, I’m questioning whether I’ve made a terrible life choice by opening it.
Why It’s Bad:
Emails should be quick and to the point. You can tell a story, sure, but keep it short and sweet. If you have a lot to say, link to a blog post or landing page where people can read more. No one signed up for your email list expecting a novel in their inbox.
Better approach: Be concise. Get to the point and leave your readers wanting more (not less). Save the deep dives for content like blog posts, where people are prepared to settle in for a longer read.
Ever been stuck in a conversation that just won’t end, and you’re desperately looking for an exit? Yeah, don’t make your email feel like that.
FAQs
1. What’s the worst mistake brands make in emails?
The worst mistake is failing to provide value. Whether it’s a hard sell, irrelevant content, or an email that’s too long, if people don’t feel like they’re getting something out of your emails, they’ll stop opening them. Worse yet, they’ll unsubscribe.
2. How can I avoid embarrassing email mistakes?
Test, test, and test again. Always send a test email to yourself and your team before hitting “send” to your entire list. Check for personalization errors, broken links, and formatting issues. It might seem tedious, but it can save you from making embarrassing mistakes.
3. How often should I email my subscribers?
It depends on your audience and the value you’re offering. If you have something useful to say, feel free to email once a week. If not, don’t force it. Quality over quantity is key. Bombarding your audience with too many emails can lead to unsubscribes.
4. Should I use humor in my brand emails?
Absolutely—if it fits your brand voice. Humor can make your emails more relatable and engaging. Just make sure it doesn’t overshadow the message. And remember, humor doesn’t work for every brand, so know your audience.
5. What’s the best way to handle a mistake in an email?
If you made a mistake, own up to it quickly. Send a follow-up email explaining what went wrong and apologize sincerely. People appreciate transparency. Just make sure your apology is genuine and not a ploy for attention.
6. How do I know if my email sounds unprofessional?
If it’s overly casual, filled with typos, or lacks clarity, it’s probably unprofessional. Before hitting send, ask yourself: Would I be okay if this email was forwarded to my boss or a client?
7. What’s the biggest email mistake people make?
The biggest mistake is using the wrong tone for the situation. If you’re emailing your boss or a client, keep it professional. If you’re messaging a coworker about lunch plans, it’s okay to be more casual.
8. How can I avoid typos in my emails?
Use spellcheck, read the email out loud, and take a moment to review before sending. It’s always a good idea to proofread, especially if it’s an important email.
9. How do I make my emails more professional?
Stick to clear and concise language, use a professional greeting and sign-off, and make sure your subject line is relevant. Avoid unnecessary details and focus on the point of your email.
10. Should I use emojis in work emails?
It depends on your company culture. Some workplaces are fine with emojis in casual emails, while others prefer a more formal tone. When in doubt, err on the side of professionalism.
Final Thoughts
Writing professional emails might seem like common sense, but as we’ve seen, things can go sideways quickly. Whether you’re too casual, overly formal, or just not paying attention to detail, unprofessional emails can leave a lasting impression—and not in a good way.
The good news? With a little effort and attention to detail, you can avoid these common email pitfalls. Keep your messages clear, respectful, and focused, and you’ll be the person everyone wants to receive emails from—not the one they dread seeing in their inbox.
Now go forth and send those emails like the pro you are!





