I've just reloaded my gateway machine with Debian 2.1. It was formerly Debian 1.3, so the MTA has changed from smail to exim. Exim refuses to accept mail from a Windows 95 system connected to the gateway.
There are two Windows 95 systems connected to the gateway. System 1 can send mail with no problem; System 2 can't. Both systems are configured identically as far as I can tell. Both could send mail before the change. There's no mention of either system in the gateway's /etc/exim.conf. It's possible that bind isn't set up right, but it is at least set up to treat each of the two systems the same way. Something's apparently different somewhere, though. System 2 can receive mail that has arrived at the gateway using POP with no problem. When System 2 attempts to send mail, the bounce message on System 2 says, "No transport provider was available for delivery to this recipient." The message in exim's rejectlog on the gateway says (lightly edited): 1999-07-13 21:37:05 unqualified sender rejected: <username> \ H=system2.sadt.com (system2.sadt.com.1.168.192.in-addr.arpa) [192.168.1.33] The ...in-addr.arpa business looks fishy, but mail accepted from System 1 causes a similar-looking mainlog entry: 1999-07-13 21:29:34 114Dra-0003WK-00 <= [EMAIL PROTECTED] H=system1.sadt.com \ (system1.sadt.com.1.168.192.in-addr.arpa) [192.168.1.34] P=smtp S=675 \ [EMAIL PROTECTED] What is exim trying to tell me?
