Technofriends

Its a known fact that the emails we receive/ send are scanned before they reach us/intended recipient.
I thought of putting below a diagram describing how the entire stuff happens.

Lets first discuss how the entire flow for Virus Scanning works in case of Incoming Mails.

• All the incoming mails ( infected/clean) irrespective of there status are sent to the Antivirus software’s temporary folder where they are scanned for infections by the software.

• In case, the Antivirus is not able to clean the mail, the item is moved to the quarantined items folder.

• All clean/disinfected mails are then sent to the Exchange server from where they can be pulled by the Email Client.

In case of Outgoing mails, the following flow holds good for Virus Scanning of Outgoing e-mails.

• All mails from the Email Client are pushed to the Exchange Server.

• The mails are then moved to the Antivirus Software’s Temporary folder for scanning.

• In case, the mail is found infected and is out of the scope of clean function, its moved to the Quarantined Items Folder.

• All clean and disinfected mails are sent back to the Exchange server from where they are rolled out for the intended recipients.

Please note that this is a pseudo algorithm describing how Antivirus Softwares actually work. This might differ from software to software.

Also read: Top 3 FREE Antivirus Applications

 

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