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Every email campaign is launched with a particular goal in mind. This can be to promote a product feature, sell a subscription plan, raise customer engagement, and so on. Goals define the key performance indicators (KPIs) or metrics a marketer has to track.

While sending emails is a straightforward process for individuals, organizations don’t have that luxury. They must put a lot of thought into this process to avoid security threats and ensure all of their emails get to recipients’ inboxes. That’s where email infrastructure comes into play. 

Though it operates behind the scenes, it combines all the components that are responsible for sending and delivering emails. Today, we’ll break down what email infrastructure is, how it works, and what can be done to boost its performance. 

SendGrid was built as a transactional email service, and then evolved into a Twilio SendGrid Email Platform. Now it is one of the most popular email sending providers, both for email marketers and developers. At the same time, there are 400+ other email sending services, so if you are looking for a Sendgrid equivalent, you definitely have plenty to choose from. We have prepared this article to help you find the right email sending service among the huge list of available options.

Learn more about email deliverability: problems, metrics, tips for improving it.