Using the company logo and clearly identifying the sender is another good way to make an effective business email newsletter. People like to know who they are getting mail from, and once they are familiar with the newsletter, they might be more likely to read it in the future. Your logo can be at the top of the newsletter and included in your professional email signature.
Digital marketing's development since the 1990s and 2000s has changed the way brands and businesses use technology for marketing. As digital platforms are increasingly incorporated into marketing plans and everyday life, and as people use digital devices instead of visiting physical shops, digital marketing campaigns are becoming more prevalent and efficient.
The first known large-scale non-commercial spam message was sent on 18 January 1994 by an Andrews University system administrator, by cross-posting a religious message to all USENET newsgroups. In January 1994 Mark Eberra started the first email marketing company for opt in email list under the domain Insideconnect.com. He also started the Direct Email Marketing Association to help stop unwanted email and prevent spam.  
By focusing on market research, the psychology of attraction, creativity and ingenuity, students learn the best ways of implementing a direct mail campaign. A marketing education informs a future marketer about what motivates people to purchase, donate, or vote; and gives them the practical and creative skills to produce media to achieve the desired results. (See also Consumer Psychology)
No matter how effective the subject line you’ll always have subscribers who don’t open it for a variety of reasons. Send your email again specifically targeting a list segment of those who didn’t open the first time around. Not only is this a second chance in case they just missed the first email, it’s another opportunity to further split test subject lines as well as send times.
Internet service providers (GMail, Yahoo, etc.) and anti-spam organizations create the spam traps to prevent spam from reaching people’s inboxes. The important thing for everyone to remember is if you use a purchased list, you are technically spamming the people on that list. Spam is unsolicited email and those people did not request your information.
Particular groups of customers can be targeted or even individuals. Offering individual customers special deals on merchandise and/or services on the customer's birthday, for instance, is one example of email marketing personalization. (A restaurant might send an email to customers on their birthday offering 50% off an entree,) Email marketing helps a business develop and maintain a relationship with a customer over time that hopefully results in increased sales and increased customer loyalty.