On 6/2/05 4:49 PM, "Fred Viles" <[EMAIL PROTECTED]> wrote: > On 2 Jun 2005 at 18:12, Matt Mashyna wrote about > "[exim] Client Authentication": > > | I'm working on a mail client and I'm having some trouble with PLAIN > | authentication and Exim. With other servers, like Postfix for > | example, the client says EHLO and gets a list of authentication > | schemes, among other useful info. With Postfix my client can send > | AUTH LOGIN PLAIN\n > > Your client is broken. The AUTH command consists of the keyword > AUTH, followed by a keyword matching *one* of the advertised > authentication methods (LOGIN *or* PLAIN, in this case), optionally > followed by data depending on the authentication method.
The client seems to be Postfix. If so, it's not broken, it's just using a different authentication system: SASL. Recent Exim's can be told how to deal with that. Unfortunately, that means I can't have my Mac OS X machine authenticate with our servers (since we don't--yet--offer SASL), if I run the message through the local Postfix. > > | client sends the b64 user name, gets a request for a password, it > | sends the b64 password and then the authentication is either excepted > | or rejected. > > If the server also prompted for the username, not just the password, > that's the standard AUTH LOGIN method. It sounds like Postfix just > ignored the invalid data at the end of your "AUTH LOGIN" command. > > | When I try to do this with an Exim server it immediately says > | "Invalid base64 data" > > Right, that's because the plaintext authenticator accepts AUTH PLAIN > syntax, where the credentials are supplied on the AUTH command so > there's no prompting. If anything follows the method name, it is > assumed to be the b64-encoded credentials. Right, except that half the connection isn't doing AUTH LOGIN or AUTH PLAIN. > > |... > | Any help would be greatly appreciated. > > Fix your client to either follow the LOGIN method: The client is--I think as I said above--Postfix. Unless there are addons for it, it can't be fixed in the way you--correctly--suggest. Exim, however, should be trainable to play nicely with Postfix, in recent versions. I haven't had time to try. --John -- ## List details at http://www.exim.org/mailman/listinfo/exim-users ## Exim details at http://www.exim.org/ ## Please use the Wiki with this list - http://www.exim.org/eximwiki/
