Outlook Exp. changes attachments names

[Gort9k]

Hola:

When I send some attachent files using Outllok Express, for example zip files. Those files arrive but with their name changed. Exactly their extension changed. Instead of xxx.zip, I get xxx.zy9. After changing those extension back to zip, I got a normal zip file.
Why does O.E. do this name changing? How can I stop O.E from donig this?

Thanks

[blebs]

Are you running zonealarm? If so, zonealarm is renaming them to keep you from opening them since they could potentially contain virii.

[Gort9k]

Yes, that's right. I'm using Zone Alarm firewall and it was the culprit.

Thanks