On Mon, 17 Jan 2005 21:57:25 -0800 (PST), Dani Comnea <dani_comnea@xxxxxxxxx> wrote: > http://www.MSExchange.org/ > Hi all, > > I've exch 2k and I installed Trend Viruswall on my server. The issue is that > I can't send mail using POP3, it give me "relaying denied" The POP3 protocol is for mail retrieval only; you cannot "send mail" with POP3. To "send mail", you will use SMTP. > On virtual smtp the authentication is default and also on POP#. I also > checked on > Outlook at Accounts-- My outgoing server requires authentication and also I > checked > ---Log on to incoming mail server before send mail. Are you not able to use a native Exchange/MAPI account to access your email from your Exchange server? I am curious why you are using POP3? With regards to the relaying denied error message you are receiving, please do read: http://www.microsoft.com/technet/security/prodtech/mailexch/excrelay.mspx And check your SMTP relay settings. ...D