Email, Messaging, & Video Calls > Email How to Use Yahoo Mail as a Virus Scanner Scan files for viruses by attaching them to messages in Yahoo Mail By Heinz Tschabitscher Heinz Tschabitscher Writer University of Vienna A former freelance contributor who has reviewed hundreds of email programs and services since 1997. lifewire's editorial guidelines Updated on June 11, 2022 Tweet Share Email Tweet Share Email Email Yahoo! Mail Gmail What to Know Create the message > select paperclip > select file you wish to scan > Open.If there's no virus, the file attaches to the message and a preview appears.To remove the file, hover over the preview and select More (three dots) > Remove. This article explains how to use Yahoo Mail as a virus scanner since Yahoo Mail automatically checks files you send as attachments for known viruses. Instructions apply to the standard web version of Yahoo Mail, and steps are the same for all web browsers. How to Use Yahoo Mail as a Virus Scanner To scan a file for viruses with Yahoo Mail: Create a new message and select the paperclip located in the bottom toolbar. Select the file you wish to scan, then select Open. Yahoo Mail tells you if it detects a virus within the file. If it detects no threat, the file is attached to the message, and a preview image appears. To remove the file, hover over the attachment preview, select the ellipses (...), then select Remove. Alternatively, delete the email and its draft to remove the attachment. Due to Yahoo Mail attachment size limits, you cannot scan files larger than 25 MB. Was this page helpful? Thanks for letting us know! Get the Latest Tech News Delivered Every Day Subscribe Tell us why! Other Not enough details Hard to understand Submit