A procedure of filtering emails that are inbound to the user’s mailbox and outbound from the user’s server is known as email filtering.
Inbound email filtering scans and filters incoming emails for spam, malware, dangerous links, and other threats, as well as organizing them into categories and folders.
Outbound filtering examines a user’s outgoing emails to ensure that employees follow the company’s policies. It also assures that no unapproved spam, malicious information, or sensitive data leaves the server.
How Does Email Filtering Work?
When you set email filtering, the software will evaluate incoming emails independently for red flags that indicate spam/phishing material and move those emails to a different folder.
Multiple criteria are used by spam filters to evaluate an incoming email. They scan for typical trigger words like “free” and “make money” that indicate an unsolicited email seeking to sell you anything.
Because the sender will not be in your contacts, if the sender sends you an email using your email address instead of your contact name, your spam filter may be triggered. Senders attempting to send you unsolicited materials, such as newsletters, may be flagged as spam.
Furthermore, if the sender’s IP address has already been flagged for spamming, a sender with the same IP address will almost certainly be flagged as well. A spam filter can be triggered by the email’s content and design.
If you enable software that monitors phishing emails, the criteria are a little different. Phishing emails frequently contain a link or an attachment that contains malware that can be exploited to infiltrate your network. Senders who have been detected for sending malware in the past may trigger a phishing filter.
Phishing filters may be triggered by emails from unknown senders that contain links or attachments. Typically, phishing filters will shift suspicious emails to a separate inbox, sometimes designated “Other.” Flagged emails will be placed “on hold” in this inbox until you release, block, or allow them.
If you release an email, it will be delivered to your regular inbox for you to open, but you will have to continue to approve emails from the sender in the future.
If you block an email, it will be rejected, and the sender will be barred from sending you emails in the future. If an email is allowed, it will be delivered to your regular inbox, and the sender will be automatically approved to send emails to your inbox in the future.