Celejar, sorry, I thought I was asking just a generic question. Yes, I'm running exim4 under debian squeeze, with SMTP authentication required, and I do have an entry in my /etc/exim4/passwd.client file, and my problem probably has to do with the syntax of the entries.
For years I've used a wild card for the mail server, entered my UID for the mail server, which is my email address, and finally the password for this account: *:bro...@historicalmaterialism.info:password Now I have a second box with a different user account name (which I'll call user1 here), which wants to be authenticated by this same mail server. On this second box, exim4 creates the From: line by attaching the user account name (user1) to the domain name: us...@historicalmaterialism.info. The aim is to have this sender address authenticated. I try various things in passwd.client: Outgoing mail accesses my mail server account with a UID which is my email address (br...@historicalmaterialism.info) and a password (password). So, for user1 on the new machine to use this email account, I put in the line: *:bro...@historicalmaterialism.info:password This does not work because the From: line of the outgoing message is us...@historicalmaterialism.info, and so the server wants to see if this user1 is legit. So I add this line: *:us...@historicalmaterialism.info:password But this is not the UID of the account name, and so does not work. In desperation I also tried a wild card to cover all users: *:*...@historicalmaterialism.info:password In any ase, when user1 attempts to send a message, it immediately bounces with this error message: recipi...@address.com SMTP error from remote mail server after RCPT TO: <recpi...@address.com>: host mail.historicalMaterialism.info [216,239...]: 553.5.7.1 <us...@historicalmaterialism.info>: Sender address rejected: not onwed by user bro...@historicalmaterialism.info I took this to mean that the error message cames from my ISP's mail server even though it seems instantaneous. "mail.historical.materialism" is the mail account on that server. I assume that the account on the mail server with UID bro...@historicalmaterialism.info could not authenticate mail from us...@historicalmaterialism.info. Haines -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/87y6bc77ui....@teufel.historicalmaterialism.info