Tech Xpress

Email .Zip Attachments without being Filtered

Most companies block or filter email attachments depending on the type of files that are attached. Usually, the filters remove executable files, zip, rar files from the message. Sometimes, this can be a bit annoying, especially when you want to send zip files.

More often than not, we are required to send a compressed zip file to clients. And not surprisingly, those attachments are filtered out. But with a few little tweaks, those filters can be bypassed.

1. Put all your files in a Zip file. Let's assume the name of the file is

2. Change the extension of the zip file to doc i.e change to abc.doc.
Here's how you can change the file type in Windows -
a. Open a folder.
b. Go to Tools >> Folder Options. Click on the View tab.
c. Uncheck Hide file extensions of known file types. Click Ok

3. Now rename to abc.doc. A warning box pops up. Just click Ok.

4. Email filters will recognize abc.doc as a Microsoft Word file and not as a zip file.

5. Attach the file and send the email.

Note: Don't forget to tell the email recipients on how to open the file.
Right-click the file and select the option to open it with Winzip, if installed, or other archiving software.
Another way is to follow the same steps above to change the file extension to .zip.
Also, you may want to revert the steps mention in point 2 in your machine.

Off course, there are much better ways to send zip files; like FTP, file sharing sites or sending the attachment to the recipients personal email. Use the above method only if you have no other choice.

More Reading:
How to Report Suspect Phishing Emails in Yahoo and Gmail
Copy Contacts from other Email Accounts to Yahoo

posted by Vijeesh Ravindran, Wednesday, January 14, 2009


Today I did archive from video file and after that both files were damaged.And I used-how to recover damaged zip files.This tool me advised friend and it is free as far as I know,besides that program can also uses several different algorithms to extract the data and compare checksums.