[imp] imp-3.0/horde-2.0 https and "double login"

[oiler@unseenedge.net]

Greetings, 

I've just set up imp-3.0/horde-2.0 on OpenBSD 3.1.  I configured them to avoid 
the "double login" by uncommenting the registry['auth'] lines in registry.php. 
imp/horde runs on a separate system from my imap server.  Access to the imap 
server uses TLS with self-signed certificates (imap/tls/novalidate-cert).  The 
web server serves the same pages for both http and https. 

Everything works fine if I access imp via http: login once, get to my mail 
immediately.  If I use https, however, I have to log in twice.  The first login 
works for horde, but I get a second login screen with these error messages: 

    Warning: Retrying LOGIN authentication after AUTHENTICATE LOGIN failed 
    (errflg=1) in Unknown on line 0 

    Warning: Retrying LOGIN authentication after AUTHENTICATE LOGIN failed 
    (errflg=1) in Unknown on line 0 

    Warning: Can not authenticate to IMAP server: AUTHENTICATE LOGIN failed 
    (errflg=2) in Unknown on line 0 

If I then click on "Log in to Mail" and log in again, everything works. 

/tmp/horde.log has these lines, one for the failure, one for the success: 

    Sep 03 21:35:15 HORDE [error] [imp] FAILED LOGIN 66.93.0.191 to 
    imap.unseenedge.net:143[imap/tls/novalidate-cert] as oiler [on line 332 
    of "/var/www/horde/imp/lib/IMP.php"] 

    Sep 03 21:35:46 HORDE [notice] [imp] Login success for oiler [66.93.0.191] 
    to {imap.unseenedge.net:143} [on line 51 "/var/www/horde/imp/redirect.php"] 

It's not at all clear to me why http or https should affect the login.  Does 
anyone have any ideas? 

Regards, 
Jon 



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