Have you tried to rebuild the MTA? I havent done a search on this error, but that would be my first thought.... Chris _____ From: NGUYEN HONG HA [mailto:HANH.EVNIT@xxxxxxxxxx] Sent: Wednesday, March 17, 2004 7:04 AM To: [ExchangeList] Subject: [exchangelist] Urgent situation http://www.MSExchange.org/ My both server SRV1, SRV2 running MSExchange 5.5 on Windows 2000 Server. They are in the same domain. SRV2 receive this Warning in Event Viewer each 11 minutes. Event Type: Warning Event Source: MSExchangeMTA Event Category: Interface Event ID: 9318 Date: 3/17/2004 Time: 5:01:16 PM User: N/A Computer: EVNSRV45 Description: An RPC communications error occurred. Unable to bind over RPC. Locality Table (LTAB) index: 183, NT/MTA error code: 1722. Comms error 1722, Bind error 1722, Remote Server Name SRV1 [MAIN BASE 1 500 %10] (14) This is the chart of my company: Internet -----> SRV2 -----> SRV1 -----> users. The users cannot receive mails from Internet. Any suggestion is appreciated. Help me please. Ha. ------------------------------------------------------ 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: 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 ------------------------------------------------------