Bowie Bailey writes:
Sam Varshavchik wrote:Bowie Bailey writes:Interesting. I verified that CRAM authentication was failing on both of my Courier systems. Disabling it made them both much more responsive.What additional requirements does CRAM have? I looked in the INSTALL document, the courier man page, and the esmtpd config file. None of them said anything other than that you have to use a compatible authentication method, which I am (authuserdb).It helps to actually understand how CRAM works. CRAM cannot use encrypted passwords, so the system must be configured to use cleartext passwords. Additionally, there's a special configuration procedure for userdb.Courier-IMAP's INSTALL has a section entitled "CRAM-MD5 authentication". This should also be present in Courier's INSTALL, but it's not. That's an omission.Unfortunately, it is not feasible to change all of the passwords on the server at this point, so I don't think we'll be able to set up CRAM authentication anytime soon.I read the Courier-IMAP INSTALL doc and it seems fairly straightforward. Perhaps a modified version should be added to the main Courier INSTALL. Also, should Courier ship with CRAM disabled as Courier-IMAP apparently does?
It should be, and I'm pretty sure it is.IMAP_CAPABILITY in imapd.dist.in, the shipped configuration, does not list CRAM. The comments that precede the documentation have an example that includes CRAM methods, but the actual default setting does not. Same for POP3AUTH in pop3d.dist.in, and ESMTPAUTH in esmtpd.dist.in. As far as I can tell, CRAM authentication is disabled by default.
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