Why having an SSL certificate on your email server is important
SSL stands for Secured Socket Layer, it’s a secure way of providing authentication and encryption during communication online between your computer and your web mail server.
When you use a standard POP or IMAP connection to download your email, your username and password is sent in clear text across the Internet. This means that anyone using the same wireless connection as you, or the same network as you, or watching traffic at your ISP - or anyone in a position to see your Internet traffic can potentially intercept your network traffic and clearly read your username and password. With this information, they can easily read all your email and worse, steal confidential information, send out spam or other malicious acts.
By using your legitimate username and password, an illegitimate user can send out spam before having to move on to another address. Cyber criminals focus on acquiring as many compromised email accounts as possible, so they can send out phishing emails or scam emails asking for money.
Have you ever received an email from someone in your address book that is asking for money or some strange request? For example, emails asking for money or recommending some illegitimate scam company or service? This is the result of someone hacking into their email.
How to be more secure?
An SSL connection encrypts your email traffic so that it cannot be read at any point between your computer and the web mail server that your email is hosted with that you are using.
With server SSL encryption, email is still not encrypted when it is sent across the internet to its destination unless both parties have set up mutual digital email certificates. It only makes the connection to your email server secure.
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