According to my very basic tests, Hotmail and Yahoo use SMTP to talk to the world. Attachments seem to be inline MIME.
You are speaking of using your Hotmail/Yahoo account to send a message/attachment, yes? -----Original Message----- From: [EMAIL PROTECTED] Sent: Tuesday, April 16, 2002 10:27 To: [EMAIL PROTECTED] Subject: Hotmail & Yahoo Mail Issue Hello, Please excuse me for posting this silly question. Normally I used to send attachments through hotmail and yahoo mail My question is, by what mode they are transferring the data, and through what port? This will help me to filter or block that particular port, to avoid data unauthorised data transfer. Thanks In Advance. Raj
