What Is Advertising By Email? Types, Examples, Writing Guide

advertisement by email

When many others pick the hand-to-hand business promotion, the smarter way is advertising by email. You know, there are more than 4.37 billion email users in the world, and they are constantly communicating through email. So, email can be a viable tool for your business promotion.

But how do product or service ads in email contribute to improved business? 

Product or service email ads contain promotional material sent to the audience, and with their consent, they will receive it. This ensures your product or service will get publicity effortlessly, and some recipients will be prospective customers.

Find out more about the advertisement email with its types and examples in the following.

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What is an email advertisement?

Email advertising is a direct marketing method to promote your products or services to a specific audience or group of audiences who have given consent to receive the type of ad emails on a regular basis. 

With email newsletter advertising, you can send a specific email to a set of groups or segments with engaging content that offers value to the audience. These ad emails contain several types, such as commercial emails, promotional emails, native ad emails, and more. 

How effective is email advertising?

Email advertising holds a specific importance in email marketing strategies. Know these significances below.

1Publish email ads to a segmented audience 

Publishing an email advertisement to a segmented audience is the primary advantage you will gain initially. When your emails are related to the audience’s interest, the ads will get clicked in no time. This gradually increases your chance of getting subscribers and ultimately conversion.

2Cost-efficient advertising

Email advertising offers a low-cost ad publishing capability and a high ROI, targeting a specific audience. There are no poster ads or cardboard advertisements; it all depends on digital advertising, which requires no physical materials to work.

3Plan your next campaign from the data

You can easily collect the data from the segmented audience by analyzing their data. Analyze how many audiences clicked the ads and what their interests are from the analytics. 

MailBluster has this unique analytics feature, where you can monitor your ad email activity with a lot of options to check, like click, delivery, hard bounce or soft bounce, open rate, click through rate, broad click performance rate, and even more. 

Advertising by email: Types and classifications

Before you start perfecting your email ads, it’s essential to familiarize yourself with certain types.

Types of advertisement by email


This will clear up the confusion of selecting the ads you want to implement. Primarily, there are two types of email advertising:

1Inside ads in emails

Inside ads are the ads that appear in various parts of the email, such as the footer, body content, or email header design content. Additionally, sponsored and commercial emails are also considered inside ad emails.

iPromotional emails

Promotional emails are a type of email that promotes products, services, discount offers, and other content to the intended audience with the goal of conversion. 

iiSponsored emails

Sponsored emails are the kind of email ads that contain third-party services. You can allow third-party ads to be displayed within your email content in a designated advertising section. This is also called sponsored email marketing.

iiiCommercial emails

Commercial emails are specifically the same category as promotional emails. These types of emails contain product or service promotions for a specific business, aiming to convert subscribers. Bulk commercial email marketing is also a widely used method. 

ivEmail blast advertising

An email blast is a series of emails or bulk emails sent to a specific audience, maintaining a consistent category for the larger audience. Email blast ads also contain promotions for the products or services.

vDirect email advertising

Direct email advertising is also a similar term to promotional advertising emails. Set emails for a specific audience or list to make a promotional email in this category. 

2Inside app ads

Inside app ads are the email ads that are generally viewed within the email app or email inbox. Like Gmail or Outlook, you can see various ads that are showing, mostly related to your search intent. 
See the inside app ads in the promotion tab

Gmail inside inbox email ads

Advertising by email: How to write an email for an advertisement? 

If you are planning to write an email newsletter advertising, there are certain criteria you need to follow. Advertising emails are mainly promotional emails that contain persuasive copy with a subject, a heading, and enticing CTA text. 

how to write an email advertisement


Let’s head to the brief guide on how to create an email advertising campaign based on a promotional approach.

Writing guide on advertising by email

  1. Keep the subject line concise: The email subject line portrays the whole theme of your email. So, keep it short, clear, and appealing.
  2. Heading containing theme: The Heading of your email creates the first impression that welcomes them and draws the audience into the content. Craft a concise and engaging heading to capture your audience’s attention.
  3. Maintain professional approach: Avoid any spelling and grammar mistakes, give space between the paragraphs, and maintain a professional business approach when composing emails.
  4. Advertising image/banner sizes: Ads email can include various sizes of banners with 300×250, 728×90, 336×280, 160×600, and 300×600, which are the standard sizes. 
  5. Offer exclusive pricing: Provide any ongoing offer or special offer for replying to the email, which will increase the chance of click to open rate
  6. Include a clear CTA: An enticing email CTA is the necessary element of an advertisement email. Provide a CTA color that aligns with your brand theme, and include persuasive text to encourage the audience to click on it.
  7. Social media appearance: Social proof and contact information should be on the email footer section within the email signature. This will lead the users to contact and check your post or availability, also publicizing your authority at the same time.

Also, if you want to show your business advertisement on inbox ads, you can publish email ads on an email service provider, like Gmail. 

You need to check their Google Ads website. There, you can open a campaign with cost settings and set the ad formation, email image size, banner size, and more.

See the Google Ad campaign page-

Google Ad campaign


If you want to know how to send an email advertisement, MailBluster can be your choice to craft engaging ad emails and send them in no time. MailBluster also includes an intuitive drag-and-drop feature and a lot of template collections with email marketing features to accomplish your marketing goals.

Check this blog for how to create one! – Creating email newsletter 

Email advertising examples

You can find many ways of email advertising to run your business promotion. Here are a handful of email ad examples you need to look at. 

1Exclusive offer promotion email advertisement example

Subject: Last Chance to SAVE 50%! Hurry!!

Preheader
: Final Call! Don’t Miss This Massive Savings!

Heading: Ending – Your Ultimate Chance to Save 50% in Winter!

Late to catch the offer? Don’t worry! MailBluster gives you the opportunity to make the BIGGEST saving! This Winter sale offers 50% off when you Upgrade to the Pro plan. Plus, the Unlimited email sending is there! Don’t fall behind! Be Smart to Grab this huge discount! Are you coming? Clock is ticking!

Promo Code: WINTER25

Offer ends: February 28, 2025

CTA text: Grab the Discount Here!

2Product promotion email advertisement example

Subject Line:
Your Favorite ITEM Is Here – 25% Off Today Only!

Preview Text:
Exclusive early access + a surprise gift just for you.

Email Body:

Hi [First Name],

We’ve just dropped something special — meet our newest arrival: the [Product Name]. Sleek, stylish, and made for your everyday use, it’s already turning heads.

Today Only: Get 25% OFF + a Free Gift
Use code: CAVE25 at checkout

Why you’ll love it:
Ultra-comfy fit
Eco-friendly materials
Limited edition design

[ Shop Now]

Hurry — this offer ends tonight at midnight. You don’t want to miss it!

Cheers,
The [Brand Name] Team

3Launch your product email advertisement example

Subject Line:
Just In: Our New Summer Collection

Body:
Hi [First Name],

We’re excited to introduce our brand-new Summer Collection!
From breezy dresses to weekend-ready styles, these pieces are made to turn heads and keep you cool.

[Shop the Collection]

Be the first to grab your favorites — limited stock available!

Cheers,
[Your Brand Name]

4Based on the Service email advertisement example

Subject Line:
Relax, Recharge & Save 30% – Limited Time

Body:
Hi [First Name],

Self-care never goes out of style. For a limited time, enjoy 30% off all massage therapy packages when you book online.

Offer valid until [End Date]
Use code: FEEL30 at checkout

Treat yourself or gift someone special – you deserve it.

[Book Now]

Cheers,
[Your Spa or Wellness Center Name]

FAQs 

How to write an email for advertisement?

Writing an email for an advertisement requires you to provide attractive content for the audience. Provide subject line, title, heading, content, CTA, sign-offs, social presence, and contact information in the email.

Why am I suddenly getting advertising emails?

This is because you might have subscribed to a website or journal, or your email address has been exposed to random listing sites on the internet. 

How much is a 1000-email list worth?

A 1000-email list price depends on the quality factor. If we keep it in a low-quality list, it would be $2 estimated revenue per email, so it will be $2000 or less, depending on the open rate, conversion rate, and average sale.

How to advertise via email?

Advertising via email requires you to follow the proper subject line and email sign-off rules. Also, you can use the email marketing tool to write and send emails.

How to block ads in email?

You can either use the adblocker or, in Gmail, go to the settings gear icon on the top → See all settings → Inbox → on categories, uncheck promotions, updates, and social to reduce ad frequency.

How to remove ads from email?

To remove ads from email, you might need to subscribe to the ESP’s premium offer, or you can use the Inbox settings option on Gmail, Outlook, and Yahoo Mail → report or dislike ads to reduce the ad frequency.

Is it legal to do email marketing?

Yes, it’s legal to do email marketing, but using an email service provider like Gmail or Outlook will easily restrict you when sending bulk emails. So, you need a reliable email marketing tool, like MailBluster, to go for seamless email marketing.

Why am I getting ads in my email?

Because you are using their free service, and to cover their cost, they are sending ads to your interests, which might match your search criteria.

What common feature of well-made web apps helps them stand out from static email advertisements?

Static email advertisements are only for providing and showing services that might interest you; tracking is needed here. A well-made web app can interact with users, collect their data, and engage with them through the app.

What is email blast advertising?

An email blast is a series of emails or bulk emails sent to a specific audience, maintaining a consistent category for the larger audience.

Which platform has an advertisement type that is most similar to email marketing?

Social media like Facebook and Instagram are examples of an advertisement type that is similar to email marketing.

Wrap Up

Email advertising is not only a source for building your email list and audience, but it is also an effective email marketing strategy to establish a more polished business platform. Sometimes, you will benefit from advertising by email, but some issues, like image caching and limited formatting options, might bother you.

So, find a reliable email marketing platform like MailBluster to use the numerous options to format your email advertisement.

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