Due to the massive growth of the Internet, most countries have passed legislation to prevent companies from sending unsolicited emails. These laws determine what is and what is not considered acceptable email correspondence, and enforce restrictions on email communications. In the United States and Europe, for example, bulk email must contain an accurate from field and subject line, and the email content must include the sender’s physical address. In addition, a blast email must also offer its recipients the opportunity to unsubscribe from the email list — and such requests must be met within a specified period of time. As a result of these laws, it is very important for companies to maintain an updated list of subscriptions and cancellations at all times, and avoid sending out email that appears to be spam. https://s3.amazonaws.com/giveffect-assets/blog/wp-content/uploads/2018/10/02133844/email-marketing-campaign.jpg
Some web browsers offer privacy modes where users can hide information about themselves from publishers and advertisers. Among other consequences, advertisers can't use cookies to serve targeted ads to private browsers. Most major browsers have incorporated Do Not Track options into their browser headers, but the regulations currently are only enforced by the honor system.[89][90][91]
It also emphasises how digital marketing does not occur in isolation, but is most effective when it is integrated with other communications channels such as phone, direct mail or face-to-face. As we have said, the role of the Internet in supporting multi-channel marketing is another recurring theme in this book and chapters 5 and 6 in particular explain its role in supporting different customer communications channels and distribution channels.
Use it to make sales on autopilot. Creating a sales funnel out of an email autoresponder sequence is a widely adopted strategy used by information marketers, but it can also be used by software companies, eCommerce businesses and service providers. For example, it could consist of a series of educational videos, a sales video and follow-ups to sell your information products. Or, you could create a sequence of free educational emails, and then invite them to a live or recorded webinar where you make an offer. For eCommerce businesses, your sales sequence could include promo offers for products your subscriber has just viewed on your website. 

Another disadvantage is that even an individual or small group of people can harm image of an established brand. For instance Dopplegnager is a term that is used to disapprove an image about a certain brand that is spread by anti-brand activists, bloggers, and opinion leaders. The word Doppelganger is a combination of two German words Doppel (double) and Ganger (walker), thus it means double walker or as in English it is said alter ego. Generally brand creates images for itself to emotionally appeal to their customers. However some would disagree with this image and make alterations to this image and present in funny or cynical way, hence distorting the brand image, hence creating a Doppelganger image, blog or content (Rindfleisch, 2016).
To increase traffic to one of its stores, a company may post a coupon on its website that offers customers an in-store discount. To entice customers to shop more online, a business may send consumers an e-mail offering free shipping for Internet purchases. Businesses also pay for advertisements on popular search engine sites. This way, even if a company's site doesn't show up in search engine results, it may be able to maintain visibility.
Push marketing is a proactive technique that enables e-marketers to "push" their product/service information to Web visitors or shoppers without their requesting it. Banner advertising, pop-up advertising, e-mail promotion, and spamming belong to push marketing. For instance, e-marketers can rent designated space from Internet service providers such as America Online or MSN for their banner or pop-up ads. Using animated graphics, appealing messages, and links, e-marketers try to lure visitors to their sites to buy their products or services. Many Internet users, however, find such ads annoying and employ software that blocks pop-ups and banner ads. <
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