I've tried every setting I could on the plugin and email configuration. You cannot send a password protected zip file through the Wingate mail server with the AV plugin enabled.
Wingate v6.1 build 1068
Kaspersky AV v2
This may relate to MastaCico's problem. I rezipped the file without a password, and sent it successfully.
Here is what the mail server logs:
11/13/05 12:28:00 192.168.1.203 Guest 0000003001 Error: ==== Message file 0000381420 rejected - Content blocked. Kaspersky AntiVirus 2.0 for WinGate blocked 0000381420. The file may contain Password-protected-EXE
11/13/05 12:28:00 192.168.1.203 Guest 0000003001 Requested: SMTP In: mail from Administrator@infosearch.com blocked (Content blocked. Kaspersky AntiVirus 2.0 for WinGate blocked 0000381420. The file may contain Password-protected-EXE)
11/13/05 12:30:30 192.168.1.203 Guest 0000003017 Error: ==== Message file 0000381422 rejected - Content blocked. Kaspersky AntiVirus 2.0 for WinGate blocked 0000381422. The file may contain Password-protected-EXE
11/13/05 12:30:30 192.168.1.203 Guest 0000003017 Requested: SMTP In: mail from Administrator@infosearch.com blocked (Content blocked. Kaspersky AntiVirus 2.0 for WinGate blocked 0000381422. The file may contain Password-protected-EXE)