Try telneting from external ti your mx record to see your firewall is stoping anything -----Original Message----- From: Danny [mailto:nocmonkey@xxxxxxxxx] Sent: Wednesday, March 16, 2005 3:39 PM To: [ExchangeList] Subject: [exchangelist] Re: can't receive mail (internal & external) http://www.MSExchange.org/ On Wed, 16 Mar 2005 22:24:04 +0200, Obakeng Seleke <obakeng@xxxxxxxxxxxxx> wrote: > http://www.MSExchange.org/ > > Hi All, > > I'm currently having a problem in my company where all users are able > to send e-mails to external domains but cannot receive any, i've > checked my services and all have started (SMTP). Our internet line is > a 512k leased line and we use SMTP to transport and retrieve mail from > our ISP. You retrieve email from your ISP with SMTP? Is this a new experimental version of the SMTP protocol? The SMTP I know (see: http://www.faqs.org/rfcs/rfc821.html) is for moving email between servers--both sending and receiving. POP3 and IMAP are for managing received messages and downloading messages from a server to a client. Anyway, first things first, can you telnet to your ISP's SMTP server on port 25? Have you checked your DNS resolution? What does your ISP say? ...D ------------------------------------------------------ List Archives: http://www.webelists.com/cgi/lyris.pl?enter=exchangelist Exchange Newsletters: http://www.msexchange.org/pages/newsletter.asp Exchange FAQ: http://www.msexchange.org/pages/larticle.asp?type=FAQ ------------------------------------------------------ Other Internet Software Marketing Sites: World of Windows Networking: http://www.windowsnetworking.com Leading Network Software Directory: http://www.serverfiles.com No.1 ISA Server Resource Site: http://www.isaserver.org Windows Security Resource Site: http://www.windowsecurity.com/ Network Security Library: http://www.secinf.net/ Windows 2000/NT Fax Solutions: http://www.ntfaxfaq.com ------------------------------------------------------ You are currently subscribed to this MSEXchange.org Discussion List as: alex@xxxxxxxxxxxxxxxxxxxxxx To unsubscribe visit http://www.webelists.com/cgi/lyris.pl?enter=exchangelist Report abuse to listadmin@xxxxxxxxxxxxxx