Hi, I got new details about my problem... Yesterday I did some new test, unsuccessfully, but I saw a new error message In the security event log I have an audit failure. Ok the things is the laptop I'm trying to connect to my pop3 is not a part of my domain And when I'm trying to connect to the pop3 I don't know why the laptop tries to authenticate him with his own user account (the one I'm log in), not the account I told him to take through my pop3 configuration. I hope I'm clear Any idea??? Thanks Francis ________________________________ From: exchangelist-bounce@xxxxxxxxxxxxx on behalf of Francis Lapierre Sent: Wed 5/3/2006 7:11 AM To: Exchange E-Mail List Subject: [ExchangeList] POP3 & IMAP4 problem hi have a problem with my pop3 & my IMAP4 server s when i test the connection the send test e-mail message failed i'm using Server Windows 2003 SP1 Exchange 2003 SP2 and ISA server like firewall Client Windows XP SP2 Outlook 2003 what i tried (configuration in outlook for POP3) i use SPA in the more settings in outgoing server i tried without anything doesn't work with: my outgoing server requires authentication and log on to incoming mail server before sending mail doesn't work with: my outgoing server requires authentication and use same settings as my incoming mail server doesn't work with: my outgoing server requires authentication log using ... with SPA doesn't work in the advanced tab server ports both are SSL when i do a test in outlook this is the result establish network connection completed find outgoing mail server (SMTP) completed find incoming mail server (POP3) completed log onto incoming mail server (POP3) completed send test e-mail message failled error message send test e-mail message: outlook could not connect to the outgoing mail server (SMTP). The problem could be your SSL port settings for the outgoing server. Verify your port and SSL settings under More Settings on the Advanced tab. my port in outlook are corresponding to the port on my server... Does somebody have an idea how to troubleshoot my problem??? Thanks Francis