
6 Advantages of Self-Mailers in Direct Mail Campaigns and Useful Tips
Did you know that over 90% of direct mail (according to DMA) gets opened compared to only 20% of email? Going by the number, it is worthy of attention. Talking about attention, they require 21% less cognitive effort than email. Since no distractions like pop-up ads or other open tabs exist, your clients will solely focus on the piece. These numbers emphasize why you should invest in direct mail marketing. If you want to know which mailer you should use to get the customers hooked instantly, we will advise self-mailers. It is one of the most commonly used types of pieces. Since they are simple and do not need an envelope, they immediately catch attention. Using a self-mailer in your direct mail campaign has many benefits. This blog will walk you through its basics, covering the advantages and the impact of creating a well-designed piece.
Key Takeaways
- Self-mailers are direct mail marketing materials sent to customers without an envelope. Some common examples of self-mailers are postcards and brochures.
- In addition to being economical, they encourage swift action regardless of the purpose—promotions, new product announcements, or event invitations.
- To ensure that your self-mailer has the desired impact, customize the content, use premium-quality images, and be mindful of the quality of the paper you use.
- Printing and mailing self-mailers can be tricky and time-consuming. You can opt for PostGrid to automate the process and save time and money.
What is a Self-Mailer in Direct Mail Marketing?
It is promotional mail you can send through the postal system without an envelope. The address information and the postage are printed or affixed directly to the piece. These versatile marketing materials can be used in different formats, such as postcards, brochures, bi-folds, tri-folds, four-panels, etc. Their ability to accommodate a wide range of content makes them popular for businesses looking to engage their audience.
6 Benefits of Using Self-Mailers in Your Direct Mail Marketing Campaigns
Cost-Effective
A self-mailer is just one sheet of paper, and since there is no envelope, printing them costs less. Postage is also cheaper than direct mail pieces, which you must put in an envelope. If you want to include coupons or other add-ons, they can be easily integrated using perforation, which will again bring down the cost. To save more money when printing and mailing these pieces, you should leverage a direct mail automation solution like PostGrid.
More Likely to be Seen and Shared
When you send something in an envelope, the possibility of it being opened and read is low. However, the self-mailer instantly conveys the message. The creative design and bold message will hold the reader’s attention. Moreover, they can have a long-lasting impression on multiple people. Take, for instance, you send a self-mailer to an organization. One employee will see it and then pass it on to others, thus expanding your audience base.
Provides More Room for Writing Message
Unlike other direct mail pieces, which are 4.25 by 6 inches to 12 by 6.5 inches, self-mailers provide more space to write the message. A three-panel self-mailer typically measures around 8 by 15 inches, and a four-panel is around 8 by 20 inches. They still provide a wider area of 8 by 5 inches when you fold them. You can expand your message to multiple paragraphs instead of just writing a three-word headline and a short copy below. This will help you effectively communicate what you are offering and how it can benefit the customer.
Trackable
You can track and analyze the effectiveness of your marketing campaign by adding perforated QR codes and PURLs in your self-mailers. You can measure the responses and engagement level of the recipient. This will provide information about customer behaviour and preferences. You can use this information to assess the return on investment and optimize your future campaigns.
Versatile Marketing Tool
You can design self-mailers in different formats—from a simple postcard to elaborate and foldable brochures. You can customize them to cater to various marketing goals and target audiences. This gives you flexibility in how information is to be presented. Moreover, it allows you to integrate multiple media types to capture attention and drive responses. You can design self-mailers for various purposes—promotions, event invitations, product launches, surveys, etc. The versatility allows your business to experiment with different strategies, such as limited-time offers, incentives, and more, all in the same direct mail format.
Encourages Immediate Action
You can generate immediate action from your customers using a self-mailer’s compact, direct, and visually engaging format. Since they are not packed in any envelope, the message is easily accessible, grabbing customers’ attention. You can use them for time-sensitive offers to prompt the recipients to act immediately. For instance, your self-mailer offers a limited period with a straightforward CTA like Offer Valid Till Midnight or Redeem Your Offer Today. This will create a sense of urgency and motivate the customer to act quickly.
Tips to Design a Self-Mailer for Maximum Impact
Guide Readers Seamlessly
No matter the type of fold you choose, every panel should serve a purpose and naturally lead the recipient to the next section. It shouldn’t look like a gimmick but evoke enough curiosity within the reader to learn more about your products and services.
Highlight Offer Early On
Position the enticing offer, benefits, or key information at the top of the message. This will immediately grab the customer’s attention. They won’t have to dig through the mailer to determine how your product or service will help them. Moreover, placing the value proposition up front will increase the chances of the recipient reading further.
Create a Visual Impact
Did you know the human brain processes images 600,000 times faster than text? So, no matter how persuasive your copy is, it will fall flat if you don’t use the right image to support it. Use high-quality graphics to pique the reader’s interest and evoke emotions. To highlight important information on the self-mailer, use colour strategically.
Add a Compelling Copy
Your message should be direct and concise. Use shorter sentences, bold and compelling headlines, and incorporate bullet points. This will make it easy for the recipient to scan through the self-mailer. Go for legible fonts. You can also try a combination of font sizes and styles to create a visual hierarchy as the recipient reads the message.
Personalizing the content is an effective way to increase customer engagement and boost the likelihood of their responding to your self-mailer. Adding their name or product recommendations based on their purchase or browsing history will make the customer feel valued. Moreover, addressing your customers’ specific needs and preferences fosters trust and builds loyalty.
Create a Consistent Brand Presence
The self-mailer should appear like an extension of your business. Ensure the logos, colours, and fonts are consistent with your brand identity. A strong brand presence will foster loyalty. For instance, every self-mailer you send should have the same brand colour in the header, regardless of its purpose. Upon receiving it multiple times, the recipient will instantly recognize it and value your offer.
Add White Space
A cluttered design can be off-putting. To make your brand look trustworthy, break up text and other content by adding white space between them. This will make it easy for the recipient to read the message without getting overwhelmed. Moreover, strategically placing the white space around the headlines, images, and CTA will direct the reader’s attention to the important part of the self-mailer.
Add a Call to Action
The CTA should be clear and prominent and tell the recipient what to do to take advantage of the offer or service. Use action-oriented language, such as “Claim your 7-day free trial today.” To make it easy for the recipient to respond, add a phone number, QR code, or your website’s URL.
Use High-Quality Material
If a self-mailer is made from flimsy material, it will give the impression that your business is unprofessional and does not value quality. Readers might not consider you worthy of their time. Invest in high-quality materials that are aesthetically appealing. Use glossy paper to make the images and colours pop out. Use matte paper to make it look elegant. They should also stay intact in their journey to the customer. You can use cardstock with higher GSM, somewhere between 250 and 350, as they can endure the mailing process.
Add Social Proof
Add testimonials, success stories, and reviews to support your product or service’s benefits. These persuasive factors can help customers make decisions. When customers know that others have had a positive experience with your brand, they will feel confident about purchasing or responding to the self-mailer.
Should You Print and Mail a Self-Mailer?
If you want to do it yourself, you can mail a self-mailer from paper or cardstock. However, you must follow the rules set by USPS to avoid additional costs.
- The height should be between 3.5 and 6 inches.
- The minimum and maximum acceptable lengths are 5 and 10.5 inches, respectively.
- The minimum thickness of the mailer should be 0.007 inches, and it must not exceed 0.25 inches.
- The maximum acceptable weight is 3 ounces; your paper should be at least 70 pounds in stock.
- They should be rectangular with four square corners and opposite dies.
- They must have an aspect ratio between 1.3 and 2.5.
Additionally, if you have to send bulk self-mailers, you will first need permission from the USPS. It will involve filling out a 3615 form, submitting identifying documents, and making necessary payments. Moreover, to ensure that it safely travels to the clients or customers, you must fold it into panels and secure it with adhesive tapes or glue spots. You must dedicate time and manual resources to print and mail self-mailers. Hence, we do not advise you not to do this yourself and let a professional service provider take care of it.
Design Impactful Self-Mailers With PostGrid Print & Mail API
A self-mailer is an effective direct mail marketing tool. However, you will face the challenges mentioned above if you plan to shoulder the burden. You can instead use our solution. We will automate the self-mailer printing and mailing process. All you need to do is integrate the API, choose a template, personalize it, and upload the CSV list of your contacts. You don’t have to worry about overlooking USPS guidelines or seeking their permission. We will take care of them during the design process. Moreover, automating the process will save time, and your employees will be free to focus on the business’s core objectives. To see how our solution works, request a demo now.

