Imagine you're sending a letter, but in the digital world. This is where our story about SMTP servers begins.
They are like the friendly postmen of the internet, making sure your emails reach their destination.

Postman Figure

What is an SMTP Server?

SMTP is short for Simple Mail Transfer Protocol.
Think of an SMTP server as a mailman for the digital age. Whenever you hit 'send' on an email, the SMTP server takes over. It's the engine under the hood of your email, working tirelessly to route your messages across the internet to the right inbox.

SMTP, or Simple Mail Transfer Protocol, has been the cornerstone of email communication since its inception in 1982. This protocol, pivotal in the digital era, streamlined how emails are sent, providing a standardized method for email transmission across the internet.

Understanding What SMTP Servers Aren't

Our digital mailman, however, has its limits.
It doesn't store your emails like a post office; it just passes them along. And it's not a place where you write or read emails; it's all about sending them on their way.

SMTP servers, while primarily responsible for sending emails, don't store or receive them. This distinction is vital in understanding their role in internet communication. Every time you send an email, whether it's through a popular provider like Gmail or a dedicated SMTP service like SendGrid or SparkPost, it's the SMTP server that does the heavy lifting.

SMTP Servers in Daily Life

Every day, without realizing it, you're interacting with SMTP servers.
Sending a quick note to a friend, an important business email, or receiving an order confirmation from an online store—all these go through an SMTP server.

The Difference: Mail Server vs. SMTP Server

Here's a fun fact: all SMTP servers are mail servers, but not all mail servers are SMTP servers.
Some mail servers are like your local post office, handling both sending and receiving.
SMTP servers, on the other hand, are specialists in sending.

Initially, SMTP servers operated without encryption, which posed security challenges. The evolution of SMTP brought the integration of TLS (Transport Layer Security), enhancing the security of email transmissions. This advancement was crucial, especially for email marketing, where protecting sensitive customer information is paramount.

Why They're Stars in Email Marketing

In the world of email marketing, SMTP servers are the unsung heroes.
They make sure your promotional emails don't end up lost in the digital wilderness.
They're also like those intelligent billboards, giving marketers insights on which emails were a hit and which missed the mark.

A World of Providers

Just like there are many postal services, there are many SMTP servers and providers.
You've got familiar names like Gmail and Yahoo for personal use. Then there are the specialists like Amazon SES, SparkPost and MailGun, tailor-made for businesses to send thousands of emails efficiently.

MailWizz Multiple SMTP Providers

MailWizz: Multiple SMTP Servers, One Interface

Now, imagine a tool that lets you choose any of these postal services with ease.
That's MailWizz for you. It's like having a master key to all these different mail services, making your email marketing campaigns as flexible and powerful as they can be.


From our daily communications to the vast world of email marketing, SMTP servers play a vital role.
And with tools like MailWizz, handling these digital postmen becomes a walk in the park, opening up a world of possibilities for connecting and engaging with your subscribers.

Do you have questions?

We're here to help, please contact us and we will do our best to answer your questions as soon as possible.