I am my wits end with a problem I am having with my Exchange setup. � Environment: 2 Exchange 5.5 SP4 servers on an NT domain. (soon to be upgraded) � We are doing the ground work to install spam filtering software and have installed an SMTP relay server using the SMTP service built in to IIS.� This is a temporary solution until the filtering solution is brought into production.� IMS is setup to forward outgoing email to the SMTP relay.� 99% of the email goes out with no problem.� I get around 10 messages a day bounced back with the following error (or something similar): � smtp;550 Relaying is prohibited � The SMTP service is setup only to accept connections from selected IP's from behind the firewall.� It is also configured to forward incoming email to the exchange server. � I have sent test messages to the same address that generated the bounced email only to have it delivered to the recipient. � The reverse DNS on my domain is working and I haven't found our domain on any open relay or spam lists. � I am hoping somebody has seen this before because I cannot pinpoint the problem. � Suggestions are appreciated,
----------------------------------------- Matthew Bailey LAN Engineer CSK Auto Inc. 602-631-7486 ----------------------------------------- _________________________________________________________________ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Archives: http://www.swynk.com/sitesearch/search.asp To unsubscribe: mailto:leave-exchange@;ls.swynk.com Exchange List admin: [EMAIL PROTECTED]
