The importance of securing your email helps to protect your security and helps to maintain your privacy. With most viruses traveling through the internet and email, it is critical that you protect this important form of communication. Phishing is at an all time high and spam can jeopardize your security.
Microsoft Outlook is one of the number one email clients that downloads email from the internet. MS Outlook natively is secure if used responsibly. Emails have to be filtered and rules need to be set in order to truly be secure. You can truly benefit from security add-ins that help protect your critical email and protect you against viruses and other malicious activities.
Send If Approved
Send If Approved is an add-in that helps you control all outgoing messages by sending them to a holding folder. The email sits in this folder allowing you to review the email before the email is sent. This add-in helps to stop or identify malicious code (viruses / other) that may scan your email contacts and send spam or unwanted mail to others. The add-in also allows for the review of legitimate emails to ensure the email is reviewed prior to being sent.

Secure Email Forward
Secure Email Forward allows for emails to be scanned prior to being forwarded. This allows for attachments to be taken away or used in conjunction with your Microsoft Outlook Rules Wizard. This method of forwarding email ensures that specific email messages are forwarded and that you have total control of these emails.
SpamAid 4.0
SpamAid 4.0 has autolearning capabilities along with filters to review emails for spam and to ensure unwanted mail is not sent or received. Because SpamAid 4.0 is easy to use and inexpensive, productivity for office users or home users is greatly increased. Like any spam filter, there can be false positives until you 'tweak' this program. Remember that most phishing emails and spam can put you in danger of identity theft and are moved to a special folder for review.
QMailFilter 2.2
QMailFilter 2.2 allows for the detection of spam and phishing emails along with virus protection. With email viruses and spam being the primary threat for Outlook, this tool offers both at a reasonable price.
Attachments Processor
Attachments Processor allows for the management of attachments that come in and out of Microsoft Outlook. Microsoft Outlook blocks unsafe attachments by default (extensions such as .com, .bat, .exe and more). So how does an attachment options program protect you? This add-in can block file extensions normally considered to be safe allowing for the ultimate control of how attachments are received. Attachments Processor allows for the zipping and archiving of attachments with a password.
Encrypting Your Emails with Free Certificates
The BrightHub article on Free Email Certificates is one of the very best ways to secure Microsoft Outlook. These certificates ensure that the emails sent by you are encrypted and make sure the communications with other parties are secure. Total cost $0.
Microsoft Outlook can be further secured by downloading and adding applications called add-ins. These addins help to filter spam, regulate attachments and monitor when email is sent. When installing anti-virus software, you should also allow your email to be scanned as it is downloaded. This small preventive measure can help you from being infected with a virus. You should always practice safe email use and encrypt emails for additional security.