The fact is, a significant percentage of millennials like mail. It has a built-in emotional response factor. Gallup reported that 36% of people under the age of 30 look forward to checking their mailboxes every day. What’s more, 95% of 18-to-29-year-olds have a positive response to receiving personal cards and letters. Notably this generation will wield a combined $1.4 trillion in spending power by 2020, as reported by Accenture.
Marketers continue to use direct mail in 2016 because it still leads in ROI. However, traditional direct mail marketing has changed dramatically. InfoTrends did a study on direct mail that found the following statistics: 66% of direct mail is opened, 82% of direct mail is read for a minute or more, 56% of consumers who responded to direct mail went online or visited the physical store, 62% of consumers who responded to direct mail in the past three months made a purchase, and over 84% reported that personalization made them more likely to open a direct mail piece.
The ad exchange puts the offer out for bid to demand-side platforms. Demand side platforms act on behalf of ad agencies, who sell ads which advertise brands. Demand side platforms thus have ads ready to display, and are searching for users to view them. Bidders get the information about the user ready to view the ad, and decide, based on that information, how much to offer to buy the ad space. According to the Internet Advertising Bureau, a demand side platform has 10 milliseconds to respond to an offer. The ad exchange picks the winning bid and informs both parties.
Even though this falls into just one of the myriad of elements in the 20 portion of the 40/40/20 rule, it is arguably the most important. Nothing will get your piece of direct mail marketing throw into the trash bin more quickly than a glaring typo, a noticeable formatting issue, or an overall poor print quality. If you’re writing the copy, be sure to not only proof it yourself but also have some of your more linguistically-inclined friends and colleagues give it a once over, not only for grammatical and punctuation mistakes but for overall ease of reading and flow. Don’t be afraid to seek as many trusted opinions as possible, and be sure to have thick skin to prepare for any constructive criticisms.

Furthermore, advertisers may encounter legal problems if legally required information doesn't actually display to users, even if that failure is due to technological heterogeneity.[86]:i In the United States, the FTC has released a set of guidelines indicating that it's the advertisers' responsibility to ensure the ads display any required disclosures or disclaimers, irrespective of the users' technology.[86]:4–8

Video advertising - This type of advertising in terms of digital/online means are advertisements that play on online videos e.g. YouTube videos. This type of marketing has seen an increase in popularity over time.[51] Online Video Advertising usually consists of three types: Pre-Roll advertisements which play before the video is watched, Mid-Roll advertisements which play during the video, or Post-Roll advertisements which play after the video is watched.[52] Post-roll advertisements were shown to have better brand recognition in relation to the other types, where-as "ad-context congruity/incongruity plays an important role in reinforcing ad memorability".[51] Due to selective attention from viewers, there is the likelihood that the message may not be received.[53] The main advantage of video advertising is that it disrupts the viewing experience of the video and therefore there is a difficulty in attempting to avoid them. How a consumer interacts with online video advertising can come down to three stages: Pre attention, attention, and behavioural decision.[54] These online advertisements give the brand/business options and choices. These consist of length, position, adjacent video content which all directly affect the effectiveness of the produced advertisement time,[51] therefore manipulating these variables will yield different results. Length of the advertisement has shown to affect memorability where-as longer duration resulted in increased brand recognition.[51] This type of advertising, due to its nature of interruption of the viewer, it is likely that the consumer may feel as if their experience is being interrupted or invaded, creating negative perception of the brand.[51] These advertisements are also available to be shared by the viewers, adding to the attractiveness of this platform. Sharing these videos can be equated to the online version of word by mouth marketing, extending number of people reached.[55] Sharing videos creates six different outcomes: these being "pleasure, affection, inclusion, escape, relaxation, and control".[51] As well, videos that have entertainment value are more likely to be shared, yet pleasure is the strongest motivator to pass videos on. Creating a ‘viral’ trend from mass amount of a brands advertisement can maximize the outcome of an online video advert whether it be positive or a negative outcome.
A trick banner is a banner ad where the ad copy imitates some screen element users commonly encounter, such as an operating system message or popular application message, to induce ad clicks.[34] Trick banners typically do not mention the advertiser in the initial ad, and thus they are a form of bait-and-switch.[35][36] Trick banners commonly attract a higher-than-average click-through rate, but tricked users may resent the advertiser for deceiving them.[37]
A key objective is engaging digital marketing customers and allowing them to interact with the brand through servicing and delivery of digital media. Information is easy to access at a fast rate through the use of digital communications. Users with access to the Internet can use many digital mediums, such as Facebook, YouTube, Forums, and Email etc. Through Digital communications it creates a Multi-communication channel where information can be quickly exchanged around the world by anyone without any regard to whom they are.[28] Social segregation plays no part through social mediums due to lack of face to face communication and information being wide spread instead to a selective audience. This interactive nature allows consumers create conversation in which the targeted audience is able to ask questions about the brand and get familiar with it which traditional forms of Marketing may not offer.[29] 

Dimensional mail: Grab your potential customers' attention with mail pieces that are not the envelopes or postcards that people are used to getting but ones that have dimension, such as bulky items, boxes or tubes. These have a much higher response rate than the mail pieces you are sending now. Switching from your current format to a dimensional piece is very costly, so before considering doing this you need to know your budget. However, you can expect a lift in response. One of my favorite examples is sending a "message in a bottle" in the mail. This direct mail campaign featured a little plastic bottle with a label on it. Inside was a note on how to buy the company's product. Something like that stands out and gets opened.
As a marketing strategy the email blast is divisive, to put it mildly. In fact, it’s somewhat akin to using cilantro in your cooking: either you love it or you hate it (and if you hate it, you really hate it). Some marketers have written off the email blast completely as an outdated strategy, some swear by it, and others find it cringe-worthy but still use it because it gets results.

Establishment of customer exclusivity: A list of customers and customer's details should be kept on a database for follow up and selected customers can be sent selected offers and promotions of deals related to the customer's previous buyer behaviour. This is effective in digital marketing as it allows organisations to build up loyalty over email.[22]