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How To Fix SMTP Security Issues?

Simple Mail Transfer Protocol (SMTP) is utilized by many email clients to send messages between servers and end-users. Many of you would be thinking that SMPT comes with high security and high-end encryption. But that’s not true! No security features are embedded in SMTP. It is designed in a way where it is vulnerably exposed to hijacking and other forms of cyberattacks. arry out the below steps to fix SMTP Security Issues.

SMTP Security Issues

Some of the common threats to SMTP security are listed below.

  • There might be unauthorized access to your emails and the information can be leaked easily. Cybercriminals may try to access the SMTP server through which the entire outgoing mail goes. They might use more or less sophisticated methods to break your authentication to get the SMTP server access. As a result, your emails can be accessed by unwanted users and they might use it to their advantage and you may face the SMTP Security Issues.
  • Another common attack is Phishing and Spam. When the cybercriminals succeed in gaining your SMTP server access, then there are more chances for them to send unauthorized messages to your contacts. Otherwise, they might also use your server to send malicious emails.
  • Another threat to SMTP security is Malware. Attackers can spread malicious software to your email recipients using the vulnerabilities of SMTP. These can be either Trojan Horses, viruses, or any other type of worms that can gain access to servers, access secure data, change privileges, and obstruct operations.
  • Next, let’s take a look at DoS (Denial-of-Service) attacks. Cybercriminals can also access your SMTP server to perform DoS attacks where it actually means that sending a huge amount of emails to other servers to affect their performance or even cause a crash which means SMTP Security Issues.

There is a way using which the messages transmitted between your email client and email server can be encrypted with the help of SSL/TLS. Now, even if the cybercriminals get access to the SMTP server, they can only see some random characters replacing the email contents.

TLS provides an extra layer of security by supporting the use of digital certificates. If you encounter an SMTP server error, then use these steps to resolve SMTP Security Issues.

  • Step 1: Open the email client program you are using, say Outlook, Windows Mail, or Outlook Express.
  • Step 2: Locate the “Accounts” option in the “Tools” menu and choose it.
  • Step 3: Select your email account and then tap on the “Properties” button.
  • Step 4: Choose the “General” tab and make sure the email address is a valid one.
  • Step 5: Select the “Servers” tab.
  • Step 6: Check if the “Account name” and the “password” are correct.
  • Step 7: Locate “Log on using Secure Password Authentication” and uncheck the box beside it.
  • Step 8: Either check or uncheck the “My Server requires authentication” option. Choose the Settings button if the authentication is required by your provider.
  • Step 9: When the Logon Info screen appears, choose either “Log on Using” or “Use same settings as my incoming mail server.” Then enter the specified account name and password.
  • Step 10: All the messages in the “Outbox” folder needs to be deleted. After deleting the messages, you can send your email messages and your SMTP Security Issues are fixed.