[Dovecot] Dovecot vs.Clients - strange behaviour, diagnostics sought

[Jeroen Scheerder]

Jeroen Scheerder wrote:

[...]

>>>* Thunderbird doesn't work at all.  After some waiting, it bums out and
>>> reports:
>>>
>>>   Unable to connect to your IMAP server.  You may have exceeded the
>>>   maximum number of conenctions to this server.  [..]
>>>
>>> Note that it never even shows an authentication dialog, [..]
>>
>>See, this one doesn't make a lot of sense to me.  I've been running dovecot 
>>on Solaris for quite some time now, with an almost entirely Thunderbird 
>>user base. The only difference is I'm not using it for SSL connections.
>>
>>From what I've seen, MANY people on this list DO run Dovecot w/ SSL and 
>>Thunderbird. [..]

[...]

> Thunderbird, in my test setup, is configured to use SSL.  I did notice,
> though (if a bit unexpectedly) that the service on port 994 is plain,
> albeit with STARTTLS.  Mutt and Apple's mail recognize that, switch
> to TLS, and work.  Maybe Thunderbird doesn't handle this equally gracefully;
> will try tomorrow.

That's it.  Thunderbird tried to talk ssl to a plain imap service, which 
horribly failed.

Over to SquirrelMail, and LDAP authentication with true LDAP authentication 
(i.e. without access to the password crypts).  Yay!