ZeroBounce: Everything You Need to Know About Our Email Verifier

email verifier tutorial

If you’re looking for the best email verifier on the market, you’ve come to the right place. ZeroBounce is also the most affordable one, for the value it provides, and we’re talking about some unique features, like outstanding data protection and our Email Data Append. For those of you who have just decided to use our software, and for those who haven’t made up their mind yet, we filmed a few tutorials to show you how our system works.

Our engineers have developed a software that’s easy to use by everyone. You don’t have to be an expert in order to clean your email list and, besides, if you ever stumble, our customer support team is happy to assist you 24/7.

We are going to let the videos speak now: Alex Stoeber, our Head of Customer Success, will be your guide!

How to Use our Email Verification System: welcome to ZeroBounce, the software that helps you reach humans, not bots!

What Is the API and How It Can Help You: it’s easy to integrate and it validates your subscriber’s email addresses in real time!

Payment Methods and Other Features: for an affordable price, you get a service that’s going to change the way you do business.

How to Download and Interpret Your Email Validation Results: Alex will guide you through and tell you a bit more about our Email Data Append feature.

How to Contact Us: whether you email us, give us a call, or write to us on social media, we are always here for you!


David Ogilvy: Five Lessons You Can Learn from “The Father of Advertising”

david ogilvyphoto credit

For advertising pros and copywriters around the world, David Ogilvy remains a fantastic source of knowledge and inspiration. Years after his passing, he is still considered “the father of advertising,” as his heritage is timeless and continues to influence the industry. Today we want to talk about five of Ogilvy’s essential principles, which can help us create better marketing copy and actually sell – for the very pragmatic Ogilvy, this was the sole purpose of advertising.

“The consumer isn’t a moron. She is your wife. You insult her intelligence if you assume that a mere slogan and a few vapid adjectives will persuade her to buy anything. She wants all the information you can give her.”

We started with this quote because we believe it should be at the core of every single ad out there. Many times, companies tend to forget who they are communicating to and they treat their audience as if it was an abstract entity, not real people. Real people want you to give them a good reason to respond to your call-to-action. Find a smart manner to do that and don’t forget to be human.

“When I write an advertisement, I don’t want you to tell me that you find it creative. I want you to find it so interesting that you buy the product. (…) Your role is to sell, don’t let anything distract you from the sole purpose of advertising. In the modern world of business, it is useless to be a creative, original thinker unless you can also sell what you create.”

This may seem quite aggressive, but Ogilvy was someone who never lost sight of his goal. His target was to write copy good enough to persuade people to open their wallets and buy. While he was an avid researcher and a person with a strong sense of imagination, he didn’t value creativity for the sake of creativity. He measured it in the results it would provide.

“The best ideas come as jokes. Make your thinking as funny as possible.”

If you ask a woman what’s the quality she most appreciates in a man, she will most likely tell you that it’s humor. Humor seduces us all, regardless of our gender or profession, and we also tend to respond better to funny ads, don’t we? So if you can come up with a funny remark in your next marketing email or social media post, don’t hesitate to use it. Ogilvy would applaud you.

“Never stop testing, and your advertising will never stop improving.”

We should apply this in our advertising strategy, as well as in our email marketing plan. The world is constantly changing, and so are your audience’s expectations, so you have to always update your practices and techniques to stay on top of your game. Applied in email marketing, this principle will work wonders for your business. Experiment with different types of content, subject lines and call-to-actions. Use an email verifier to validate your database and then send your campaigns to your clean email list. Study your reports and see what performs best. Pay attention to every single detail and fine-tune your approach.

“Big ideas come from the unconscious. This is true in art, in science, and in advertising. But your unconscious has to be well informed, or your idea will be irrelevant. Stuff your conscious mind with information, then unhook your rational thought process. You can help this process by going for a long walk, or taking a hot bath, or drinking half a pint of claret. Suddenly, if the telephone line from your unconscious is open, a big idea wells up within you.”

We’ve talked about how to find inspiration for your email writing, and we actually mentioned both of these crucial steps: research and relaxation. Without information, there is no great content. You communicate empty words that wouldn’t help anyone. But take research to an exaggerated level and pretty soon you will experience a burn-out that will force you to take a break. Ogilvy’s advice in a nutshell: do your research, but make sure you take a step back, every once in a while, to clear your mind and allow it to serve you those big ideas we are all looking for.


Founder of Ogilvy and Mather, David Ogilvy created some of the most iconic marketing campaigns in the world. He worked for Schweppes, Rolls Royce, Shell, Dove, and the island of Puerto Rico. In 1962, Time magazine called him  “the most sought-after wizard in today’s advertising industry.” David Ogilvy died in 1999.

Do You Still Believe These Three Email Marketing Myths?

email marketing myths

If you are a passionate email marketer, you probably read plenty of books and articles on how to stay on top of your game. There are benefits to that, but with the wealth of information out there, you may start feeling confused about what is right and wrong in email marketing. In time, you will discover that the best strategy is your own – the one you develop yourself, for your unique company, after lots of trial and error. Until you get there, you are going to stumble upon many myths, and we thought it would serve you if we talked about three of them today.

“Tuesday is the best day to send your email”

We bet you heard this one: if you send your emails on Tuesday, you are going to have the highest open rates (in the history of marketing!). Followed by “if you are not sending on Tuesdays, try on Thursdays.” Well, yes and no. Yes, statistics have shown that marketing emails sent on Tuesday mornings perform well, and those sent on Thursday afternoons have high open rates, as well. The next “best’ day would be Wednesday. But there are three aspects to consider here:

  1. Because this stat is so popular, everyone sends their emails on Tuesdays, so you’re fighting with other marketers for your subscribers’ time and attention.
  2. Another well-known stat is that 85% of people open their non-urgent emails two days after they receive them.
  3. The most relevant aspect is your industry and the nature of your content. If you are a blogger, for example, your emails may perform much better during the weekend, when people take more time to relax and are more likely to read this type of content.

“I only need to clean my list once”

There are more and more business owners who understand how important it is to have their email lists cleaned by an email verification system. The benefits are remarkable: your bounce rates will decrease up to 95%, your sender reputation will improve, and your boosted deliverability will help you achieve higher sales.

Although they see the advantages, many marketers fall into the pitfall of believing that validating your list once is enough to keep you covered for months or years. The truth is, 30% of your database deteriorates during one year. People change jobs, so they change their email address, or they just decide to switch to another provider. So you’re sending campaigns to dead accounts (which you pay for, because your ESP is charging you for every subscriber in your list). Think about doing that for months or years, and think about how much money you are losing.

Letting an email verifier clean your list periodically of invalid and dead addresses, spam traps and risky domains is the only way to be sure you are sending your campaigns safely and successfully.

Subject line: the shorter, the better

You know what they advise: keep your subject lines short and sweet. How short? Well, because more than 60% of people check their emails on their phones nowadays, it’s recommended that your subject lines are not longer than 50-60 characters. That makes sense, right? But let us share with you another interesting stat: while subject lines under 60 characters increase opens, those over 70 characters increase click-throughs. We believe that while it’s important to not exaggerate with the length of your subject line, who the email comes from and what it communicates will determine a recipient to open it or not.

What are the biggest email marketing myths you’ve encountered so far?

Little Gestures That Go A Long Way With Your Subscribers

email marketing tips

We hope you’re seeing wonderful results from your email marketing, a practice that has proven its efficiency more than any other, in the last few years. We’ve talked extensively about what you can do to boost your outcomes – creating compelling content, beautiful graphics, and cleaning your email list are all essential, but once you’ve mastered these aspects, there are little gestures you can do to strengthen your relationship with your subscribers. Let us tell you what we have in mind!

Avoid sending overly promotional content

If your email marketing’s single goal is to promote your business, your subscribers are going to be able to tell that. And they are not going to appreciate it very much. Ideally, your messages should focus more on them and the things you can offer them. Every once in a while, send an email that doesn’t try to sell anything, an email that intends to give instead of attempting to take. Keep this healthy balance, and your audience will notice it and perceive you differently.

Remember important anniversaries

If you collect your subscribers’ birthdays in your signup forms, always remember them and send them a card. You can also offer them a coupon or another perk they can claim in your store or while shopping online. Also, remember the day your customers started doing business with you and send them an email to thank them for their loyalty.

Be generous. Often.

In everything you do. Whether it’s the information you are sharing, or your special offers, let generosity be your guiding value. There is no better way to stand out, in a world where companies bombard their customers with advertising and constantly ask them to buy smething.

Encourage the sharing of opinions

Ask questions and invite your subscribers to share their opinions. Comment on the topics that generate great interest in your industry, and don’t forget to ask your subscribers’s opinion, too. Give them the chance to respond and engage in a conversation. Not only will you learn new things, but this habit will help you know them better and develop a stronger connection.

Say “thank you” at the end of every email

This is a small gesture with such a positive effect! We recommend you write a short paragraph at the end of your email, and then keep it in your template for all of your campaigns. Expressing gratitude towards your subscribers, for the fact that they signed up for your email and are reading it – that is heartwarming and will make them feel special.


These are all suggestions that make a difference in the way you communicate. If you decide to use them, we promise you they are going to contribute to your brand and help you develop a meaningful, engaged relationship with your audience. In order to reach your audience, though, don’t forget to have your database cleaned by an email verifier. After all, none of the strategies you use in your content creation are going to success if your emails are not delivered. Take a look on our website and learn more about how ZeroBounce can do for you!

What Is the Biggest Challenge in Email Marketing and How You Can Overcome It

email deliverability1

Email marketing is on everyone’s lips these days. In 2016, more than 86% of businesses indicated that they were planning to increase their email marketing budgets, and 60% of marketers said email generated the highest revenue for their business in 2017. We believe this year is going to be even more intense for marketers, as with the rise of emailing activity, they will also have significant difficulties to overcome. There is one big challenge in email marketing, in particular, that requires special attention and preventive measures: email deliverability.

In the busy landscape of email marketing, businesses are spending a good chunk of their budgets on creating outstanding marketing emails. Every little detail matters – the subject line, the content, and the graphic design are all aspects that determine your open rates and, ultimately, your sales. But, before we even think about open rates or click-through rates, let’s talk about how we can land our emails into our subscribers’ inboxes in the first place.

With more than 78% of businesses prioritizing their email marketing in 2018, email verification is becoming an incresingly necessary tool for marketers everywhere.

We are guessing you are already studying your campaigns reports, to analyze how many of your subscribers have clicked on your email and how your content has performed. Those reports also offer a detailed overview of your bounce rates, that is, the number of emails that never reached your audience successfully, without being marked as spam. The goal of every marketer is to keep their bounce rates as low as possible, but that’s not just going to happen without a little bit of effort.

Clean your email list

Delivarability is the greatest challenge in email marketing, but, as the saying goes, for every problem there is a solution, and ZeroBounce offers the most efficient one: email validation. It’s the first step to ensure that your marketing campaigns are safely arriving in your subscribers’ inboxes.

A good email verifier will remove invalid addresses from your list and also emininate spam traps, toxic and catch-all domains, known email complainers and other threats that are putting your sender reputation at risk. A thorough email list hygiene is essential in the success of your campaigns, as it will boost your deliverability and connect you with your customers.

Other things to keep in mind:

  • Keep a steady sending rhythm, but avoid sending to many emails. Did you know there are companies that email their customers twice a day? Just imagine their unsubscribe rates…
  • Speaking of your audience’s option to unsubscribe: make it easy for them, as much as you don’t like to see them leave.
  • Set up an automatic welcome email for every new subscriber, to introduce yourself and start a conversation.
  • Consider using double opt-in. This means that after people choose to subscribe to your newsletters, they will automatically receive a link they have to click on in order to confirm their subscription.
  • Stop sending to recipients that are not engaging with your content. Actually, we recommend you to remove them from your list. Lack of engagement is not a good sign for Internet Service Providers and can even lead to your emails being blocked.

If you wish yo find out more about how to boost your email deliverability, read our free guide on the topic!

How To Write A Great Subject Line

how to write good subject line

Did you know that 47% of your subscribers decide whether they are going to open an email from you the moment they see your subject line? Basically, your subject line determines almost half of the success rate of your email campaign. It is a crucial aspect to consider before you hit “Send,” and today we are going to talk about what makes a good subject line – that is, one that determines people to click on your email and read through your content.

Be concise

More than 60% of consumers check their email on their phone, so keep that in mind whenever you create your subject line. Avoid writing more than 50 characters, as long lines won’t fit on a mobile screen.

Avoid being too metaphorical

Save your metaphors and subtleties for the core of your email, when you know your reader is already engaged with your content. Subject lines should be crisp and clear and reflect the message of your campaign as well as possible.

That doesn’t mean you can’t be funny or punny

Adding a pun or a little humor in your subject line is actually a great way to stand out. Before you send, though, consult with some of your co-workers or friends, to make sure they find your joke funny, too. You wouldn’t want to offend any of your subscribers right from the beginning and get reported or marked as “Spam.” By the way, if you’d like to know more about how to preserve your sending reputation, check out our email verification system.

61% of recipients say that the reason for which they do not open a marketing email is that they are not interested in its content. How do they judge the content? Of course, by its subject line.

Use personalization

Your subscribers joined your mailing list because they like you and your services or products. They want to stay in touch with you and feel closer to your brand. Sending marketing emails is a fantastic opportunity for you to seize your customers’ desire. Start by using personalization tokens. Your subscribers will love to see their name in the subject line, as this warms up your tone, creates a sensation of closeness and makes them feel special. Calling them by their name tells them they are not just an email address in your large database, and your message is not a mass email that happened to land in their inbox.

Avoid using all caps or too many exclamation points

Remember our article about how to write better marketing emails? One of our tips came from famed writer Francis Scott Fitzgerald, who wasn’t a fan of exclamation points. He considered them a sign that you’re laughing at your own jokes, so he advised us to use them scarcely. As for caps, as you already know, in writing, they are interpreted as yelling. You don’t want to start your email by yelling at your subscribers.

Instead, use numbers. They always work.

You’ve probably noticed the tendency of journalists and bloggers to use numbers in the titles of their articles. It’s been an ongoing trend in the media, in the last 10 years, because it is actually very efficient. People love reading listicles, and when you use a number in your subject line – example: “Five Ways to Grow Your Email List” – they know they are getting content that is well structured, can be read quickly and remembered easily.

Create curiosity and call your tribe to action

One of the most powerful human emotions is curiosity. Out of curiosity, we do many of the things that change our lives, so imagine how that trigger works in enticing someone to click on your email. Focus on verbs that create a sense of curiosity and action, but avoid sounding like an ad.


Last, but not least: remain consistent in your sending behavior and make sure your sender name is familiar to your subscribers. If you have a chaotic sending rhythm, your audience may forget ever subscribing to your email list and mark you as “Spam.” Similarly, if your sender name sounds different than the one they know you by, it might confuse them and determine them to think your email is nothing but spam. Learn more about how our email verifier can help you send your marketing campaigns safely and efficiently.

Happy emailing!

Five Ways to Improve Email Deliverability

improve email deliverability

What is the best technique to ensure your email marketing delivers results? The truth is, there is no unique strategy, but several steps you need to take in order to build a strong relationship with your email subscribers. Catchy subject lines, compelling copy and beautiful design are two of the most important aspects, but none of them matter if your campaigns don’t reach your audience in the first place. We are going to give you five tips on how to increase your email deliverability rates and make sure your subscribers are receiving your marketing emails.

Use double opt-in confirmation emails

What this means is that your new subscribers are not simply going to put their email address in the sign-up form, but are going to have to confirm their email in order to be added to your list. This prevents inaccurate email addresses and bots to be added to your database, and is essential in keeping your list clean.

Validate your email list

Speaking of keeping your email list clean, there is no better way of doing that than having it validated by a specialized software. But first, avoid buying email lists, even if their source is trustworthy. The issue is, email service providers have ways of detecting if a list is bought or rented, and they will most likely reject it the moment you try to import it on their platform. We know it is going to take time and patience, but it is important that you grow your email list organically. Every year, though, about 30% of that list deteriorates, and a good email verifier will remove inaccurate and inactive accounts. Using an email checker is the best method to obtain high deliverability rates.

Remove inactive emails

This may sound counterproductive: why would you remove precious email addresses that you’ve worked so hard to gather? Because some of those addresses may be abandoned, and sending email to them will only hurt your IP reputation. If you notice that a subscriber hasn’t opened or clicked on any of your emails in the last six months, it’s best to just remove that address from your database. In our Complete Guide to Improve Inbox and Deliverability, our experts explained: „A lot of ISP algorithms are based on user engagement. The more non-openers and non-clickers, the worse the statistic gets and the worse your inbox rate becomes. After six months, you can also retry sending to these email addresses to see if the recipients open or click.”

Warm up your IP before every campaign

Our experts also advise you to warm your IP every time you prepare to launch a new campaign. Sending too many emails at once will result in bounces and deferrals. In order to avoid that, study and follow the guidelines of every email provider. You can usually find those guidelines on your postmaster’s website.

Be consistent

Your sending behavior should have a steady rhythm. This will not only help you stay in touch with your subscribers, but will also keep your IP warm. Send your newsletters and other marketing materials on the same day, every week or month, as this will contribute to your sender reputation, as well.


Do you want to learn more about how to improve the deliverability of your email campaigns? You can always read our free Guide here!

ZeroBounce turns one! A Big “Thank You” and A Quick Look Back

zerobounce email verification

On the 26th of January, 2017, we started our most exciting project so far: ZeroBounce was established with the purpose of helping you reach your audience and your marketing success. One year later, we’re so happy to be here and we want to pause for a moment, say “Thank you” and take a look back at our most important moments.

  • Hundreds of bloggers around the world reviewed and recommended us in their articles.
  • Our Facebook page has grown from zero to a community of over 6,000 friends.
  • We partnered with Cloudflare to offer you upgraded security services and to take data protection to an even higher level.
  • Our team compiled and released The Complete Guide to Improve Inbox and Deliverability, a free resource created to help marketers everywhere.
  • We signed with M24Seven to verify email lists and ensure their customers are sending emails safely and efficiently.
  • AccuWebHosting thinks we are “the best overall email verification service provider.”
  • BuzzFeed has called us “an excellent email validation tool.”
  • We were mentioned on
  • Famous news agency Agence France Presse picked up an article about us.
  • So did Yahoo!
  • The news about our partnership with M24Seven spread all around the globe, from The United States to Canada, Brazil, Germany, Italy, The Netherlands, India, Japan, Taiwan, and South Africa.
  • called us “the best in email validation.”
  • We won the Affy Award for Outstanding Internet Achievement, at the Affiliate Ball in Las Vegas.


We would like to thank you all for allowing us to be a part of your success, and we’re looking forward to being your top choice for email verification in the future, as well!

How to Create Better Emails: Advice from Famous Writers

famous writers how to write betterPhoto by MILKOVÍ on Unsplash

There’s a famous quote from Ernest Hemingway that says: “There is nothing to writing. All you do is sit down at a typewriter and bleed.” Email marketers don’t use typewriters and they usually don’t bleed when they write, unless they cut a finger in the process. But writing can be almost as tough for them as it is for novelists. Creating great marketing copy, that delivers results, is a task even the most experienced ones find difficult. How do you write well? Some of the most accomplished writers in the world shared their rules. Let’s see how we can incorporate them in our marketing emails.

Try the best and most affordable email validation system on the market!

Kurt Vonnegut

kurt vonnegut
photo credit

“Here is a lesson in creative writing. First rule: Do not use semicolons. They are transvestite hermaphrodites representing absolutely nothing. All they do is show you’ve been to college.”

One of the greatest minds of our time, Mr. Vonnegut hated semicolons. His clean, concise writing is a trademark, and so is his conversational tone.

F. Scott Fitzgerald

Scott Fitzgeraldphoto credit

“Cut out all these exclamation points. An exclamation point is like laughing at your own joke.”

It looks like every writer has a certain punctuation mark he’s not fond of. The author of “The Great Gatsby” isn’t known as someone who laughed at his own jokes. The same applies for Elmore Leonard, who said: “Keep your exclamation points under control. You are allowed no more than two or three per 100,000 of prose.”

Doris Lessing

Doris lessing

“Always the same advice: learn to trust our own judgment, learn inner independence, learn to trust that time will sort the good from the bad – including your own bad.” 

The British writer, who received the Nobel Prize for Literature in 2007, can credit her own good judgement for her beautifully written stories.

Maya Angelou

Maya ANgelouphoto credit

“You can only become truly accomplished at something you love. Don’t make money your goal. Instead pursue the things you love doing and then do them so well that people can’t take their eyes off of you.” 

Isn’t this the best approach to writing? Poet and activist Maya Angelou was an artist of the word, and had the generosity to share her perspective with us.

Stephen King

stephen king
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“If you don’t have time to read, you don’t have the time – or the tools – to write. Simple as that.”

The most celebrated horror and supernatural fiction writer of today, Stephen King credits much of his writing technique to the books he’s read. For him, there simply isn’t any good writing without many hours of reading.

Jonathan Franzen

Jonathan Franzen
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“Interesting verbs are seldom very interesting.”

The American novelists advises us to stay away from so-called “interesting” words. They won’t make us look smarter.

William Zinsser: Don’t be a robot

William Zinsserphoto credit

American journalist, writer and literary critic William Zinsser was also one of the best writing teachers ever. In his famous book “On Writing Well,” he shared his vast knowledge on the subject and has since helped millions of writers create better copy.

What we can take from Mr. Zinsser:

♦ “Writing is not a special language owned by the English teacher. Writing is thinking on paper. Anyone who thinks clearly can write clearly, about anything at all.”

♦ “Remember that what you write is often the only chance you’ll get to present yourself to someone whose business or money or good will you need.”

♦ “If you work for an institution, whatever your job, whatever your level, be yourself when you write. You will stand out as a real person among the robots.”

We believe this last advice is particularly useful for marketers, who represent companies that aim to be relatable, liked and, eventually, successful.

John Updike: Any process can be creative

John Updikephoto credit

One of the world’s masters of creativity, John Updike wanted to remind us we all have access to it. It all depends on how we decide to use it. “Creativity is merely a plus name for regular activity. Any activity becomes creative when the doer cares about doing it right, or better,” Updike said.

We would like to end with an idea from C.S. Lewis that opens up a world of possibilities for writers everywhere. Whether you write articles, essays, stories, novels or marketing emails, you should know that “you can make anything by writing.”


Is your new campaign well-written and ready to reach your subscribers? Take an additional step to increase your deliverability by cleaning up your email list. A good email verifier will remove unsafe and invalid addresses from your database and help you communicate more efficiently and keep your sender reputation intact.