Mass mailing is an important strategy in digital marketing used to increase sales and promote a brand. An email marketing campaign is essential nowadays for advertising in order to reach a large list of clients and meet the organizational goals. Apart from business, there may be several occasions wherein you may want to send bulk emails invitations, newsletters and announcement letters to thousands of addresses, sometimes millions. You soon realize you need a bulk email sender service/software that has all the features that are essential to create and send the mails but also to have a higher in-boxing rate. After all, you have thousands/millions of subscribers and you need to reach across and market your products and services. Sending bulk email is a very unsettling task for most businesses as they are unsure whether the emails will land up in the inbox or in the spam folder! After a bit of research you begin to realize the task of bulk emailing involves quite a lot technical knowledge and savvy. If terms like MTA, bounce processing, FBL, domain keys, sender policy, message authentication, domain rules, split tests, domain masking, ip rotation, and blacklist monitoring all sound confusing to you then it would help to take a look at this resource.