SSL port: What is it for?

When information is exchanged over the Internet, it must be done in a secure manner that guarantees the integrity and security of the data. Using an SSL port is essential today to be able to encrypt the data transmitted between a client and a server, allowing information to flow securely between both and allowing economic transactions and other sensitive data exchanges to be carried out in a secure environment. protected and reliable environment.  


What is SSL port

Secure Sockets Layer (SSL ) is a  standard security technology that facilitates the transfer of encrypted data between a client and a server . With the SSL layer, both parties can maintain a private exchange of data, without a third party being able to intercept it. If the data is intercepted, it cannot be read as it is encrypted.

An SSL port refers to a port used for data exchange that has a security and encryption layer . In an email configuration with IMAP ( Internet Message Access Protocol ), a secure port with SSL is used, which is usually port 993 by default, while port 143 is the IMAP port without SSL by default.   

In a POP email configuration, the port with SSL encryption by default is 995, while without SSL encryption, port 110 is used by default.

Many email servers disable POP 110 and IMAP 143 ports to force users to use SSL ports (POP 995 and IMAP 993) to ensure they send and receive emails under a high security environment.

What is TLS

Transport Layer Security or TLS ( Transport Layer Security ) is a new version of the SSL protocol that improves its features. It is common today to refer to SSL when in reality it is TLS, since it is an evolution of it.

A TLS port can be used to increase security when sending emails.

What is the SSL port for?

With an SSL connection you can and receive emails securely . Messages sent through the SSL port are encrypted and reach the recipient safely. If when sending an email through the SSL port the message is intercepted by a third party, you will not be able to access its content, since it is encrypted and only the sender and recipient have the keys to decrypt them.   

We have talked about what the SSL connection is and its importance in being able to transfer data securely over a network or the Internet. Email is undoubtedly one of the most useful and used communication channels today, both by individuals and companies. Using an SSL/TLS port you can encrypt the message sent and guarantee that no one will have access to its content, even if it is intercepted, since it is encrypted by keys that only the sender and receiver of the message have access to.