Every active internet user has faced the problem of spam in their inbox. For large companies, this issue is even more pressing. Due to the sea of spam that arrives at their official mailboxes, it's often possible to miss a lucrative business offer, a response from a potential partner, or a resume from a promising candidate.
By the most conservative estimates, the share of spam in global email traffic exceeds half. Employees, receiving several business emails a day, delete hundreds of spam emails daily from their mailboxes. Hours of working time are spent monthly fighting spam. Improperly configured spam protection can lead to good emails being filtered into the "Spam" folder.
Email server protection is necessary against such types of attacks, protective measures for servers:
- DDoS attacks. A large flow of traffic or emails is sent to the email server, resulting in it being unable to cope with the workload. An overloaded server can either be hacked or this attack can be used as a distraction.
- Spam. Spam consists of unwanted emails. It can be of two types – commercial and non-commercial. The first type of spam can even be useful for a company, as it can provide fairly interesting offers. The second type includes ads for dating sites, porn websites, Nigerian letters, pseud-charity, political spam, chain letters, and viral spam. Spam filtering can be automatic or non-automatic. In automatic filtering, spam filters are used on server, or the body of the email is analyzed. In non-automatic filtering, the user manually sets stop words to filter out spam. Such methods can filter out 97% of spam, leaving only the most recent and inventive ways to bypass blocks.
- Phishing. Infection of a computer by a trojan. This trojan collects logins, passwords, and banking card numbers from users and sends them to third parties. Typically, this is an email with an attached program or a link to a malicious site. Unfortunately, 90% of companies do not pay adequate attention to this threat and do not update their software.
In the protection of the SMTP email server includes black and gray lists, attachment and header analysis, and protection against address harvesting. Additionally, it uses a bulk checking algorithm that improves year by year, rather than relying on spam techniques. A good mail server protection system can handle hundreds of emails per second without a noticeable increase in network load.
In 90% of cases, viruses, keyloggers, and trojans penetrate computer networks through email. ProHoster hosting company offers to protect your corporate mailboxes from a sea of spam and viruses. We will check all incoming emails using an intelligent filter to reduce traffic.
You can find out all the details from our technical support. Contact us today – ensure reliable protection for your mailboxes.
