Timo Sirainen wrote:
On Wed, 2005-09-14 at 17:53 +0100, Steve [Dovecot] wrote:
"Net::IMAP::NoResponseError: Unsupported authenticationmechanism" If I change 'LOGIN' to 'CRAM-MD5' (the other value supported by Net::IMAP) then I get a similar (but not identical) error: "Net::IMAP::NoResponseError: Authentication failed: Unsupported authentication mechanism" If I use anything other than either 'LOGIN' or 'CRAM-MD5' I get an error from the Net::IMAP library saying "Unknown auth type" - which is reasonable.
PLAIN is the standard plaintext mechanism. If you want to use others, you'll have to add them to auth_mechanisms setting. Dovecot also accepts LOGIN if you just add it there.
Ah, ha... I'd assumed that 'LOGIN' as the authentication method for Ruby's Net::IMAP was synonymous with 'PLAIN' authentication. I'm using dovecot 0.99.14-r1 under Gentoo and I note that auth.txt makes no mention of a 'LOGIN' authentication mechanism. If I abandon the authenticate() method in Ruby and use the login() method instead I get much further... though I have to admit that I am confused as to why there's a need for both - as well as why the default authenticate() seems to be incompatible with my default dovecot configuration... frustrating.
Steve