Sales: 011 262 3632
Support: 011 262 3632

Protect your IT ecosystem with email security services


The importance of your email server security cannot be overstated. There are now more email-borne threats than ever and cybercriminals are constantly finding more sophisticated ways to infiltrate your system via your email. According to Business Tech reports, many cyberattacks start with a phishing email and, since the email server handles more traffic than any other server in your business, it's crucial to have ironclad email server security.

The emails that move across your server can contain highly sensitive data, including customer information, and must be protected as a matter of compliance. In highly regulated sectors, customer information must be secure to meet current regulations. This includes their emails and the information contained in them. This blog looks at how you can secure your systems by using email security services and it also includes a few professional tips.

Firstly, ensure that you keep the amount of data on your server to a minimum and don’t use unnecessary software. You will reduce your risk by keeping the vulnerable surface area smaller.
Make sure every component is equipped with the most recent updates, security patches and fixes.
Another way to be more secure is to provide a secure log-in procedure. Your email server’s Simple Mail Transfer Protocols (SMTP) will require users to have usernames and sophisticated passwords to log onto the email server. You should also change passwords regularly.

Encrypt your emails thoroughly to protect them. SMTP, Post Office Protocol 3 (POP3) and Internet Message Access Protocol (IMAP) protocols must be encrypted. You can use TLS (Transport Layer Security) and SSL (Secure Socket Layer) to authenticate messages that go through your email server.

You must protect your server from spam emails. Incoming and outgoing spam messages can be a security risk. The former because they can have harmful attachments with malware and Denial of Service (DoS) attacks that can infiltrate your server (through incoming email) and the latter because if you don’t make sure that your SMTP protocol is correctly set up, spammers might be able to use your server to send out their spam. For this reason, one of the most important facets of email security is to configure your mail relay. Doing this allows you to specify which Internet Protocol (IP) addresses act as a relay.

Content filtering is an effective way of protecting against spam. It can be configured on your server or a proxy application, like a firewall, that will protect access to the server. You can also blacklist servers that send out spam.

DoS attacks are particularly damaging. They can put your entire server out of commission and give you the added headache of affecting your reputation with your customers. Limiting general overtime and simultaneous connections to the SMTP server will protect against DoS attacks.

DoS attacks can also occur by sending a large number of Send requests. You can protect against this by enabling SMTP authentication, using Mail Relay to specify the IP addresses that the server can send mail from, and Reverse Domain Name System (DNS) which allows you to compare IP addresses, domains and host names.

SYNAQ Securemail offers a 99.5% spam protection, 100% virus protection, and three layers of phishing protection. Our email security services are smart and provide a true insight into email usage, top threats and bandwidth savings, and also provide you with integrated advanced reports.