Bug 179574

Summary:	pop3 uidl format issues
Product:	[Fedora] Fedora	Reporter:	Paul Dickson <paul>
Component:	dovecot	Assignee:	Petr Rockai <prockai>
Status:	CLOSED RAWHIDE	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	rawhide	CC:	relnotes, tss, wtogami
Target Milestone:	---
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2006-03-14 09:47:34 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Paul Dickson 2006-02-01 15:08:57 UTC

Description of problem:
Because plaintext LOGINs are disabled now by default, I thought I'd try SSL. 
But sylpheed is giving me these errors:

** LibSylph-WARNING: SSL_read() returned error 5, ret = 0

** LibSylph-WARNING: sock_read: received EOF



Version-Release number of selected component (if applicable):
dovecot-1.0-0.beta2.2

How reproducible:
Always

Steps to Reproduce:
1. Install dovecot
2. Set sylpheed to use SSL or STARTTLS
3. Fetch E-mail
  
Actual results:
* Connecting to POP3 server: red.pwd.internal...
** LibSylph-WARNING: red.pwd.internal: SSL certificate verify failed (18: self
signed certificate)

[08:05:08] POP3< +OK Dovecot ready.
[08:05:08] POP3> USER dickson
[08:05:08] POP3< +OK
[08:05:08] POP3> PASS ********
[08:05:08] POP3< +OK Logged in.
[08:05:08] POP3> STAT
** LibSylph-WARNING: SSL_read() returned error 5, ret = 0

** LibSylph-WARNING: sock_read: received EOF

** LibSylph-WARNING: [08:05:08] Connection closed by the remote host.

** Connection closed by the remote host.


Expected results:
E-mail being downloaded

Additional info:
I first had this problem with sylpheed-2.1.6, but I downloaded and compiled
2.2.0beta7 to verify that it wasn't just that version.  Both systems are running
the latest version of devel (only this very latest version of dovecot became
available while I was debugging, but it too has the problem).

Is there another MUA that supports SSL that I can test against dovecot?

Comment 1 Paul Dickson 2006-02-01 15:19:37 UTC

Ok, this might not be an SSL problem.  Setting disable_plaintext_auth = no, I get:

* Connecting to POP3 server: red.pwd.internal...
[08:20:33] POP3< +OK Dovecot ready.
[08:20:33] POP3> USER dickson
[08:20:33] POP3< +OK
[08:20:33] POP3> PASS ********
[08:20:33] POP3< +OK Logged in.
[08:20:33] POP3> STAT
** LibSylph-WARNING: sock_read: received EOF

** LibSylph-WARNING: [08:20:33] Connection closed by the remote host.

** Connection closed by the remote host.

Comment 2 Paul Dickson 2006-02-01 15:28:24 UTC

maillog (on server running dovecot) is getting:
   child 3363 (pop3) returned error 89

Comment 3 Petr Rockai 2006-02-01 16:01:34 UTC

the error (here) also says: 
pop3(dovetest): pop3_uidl_format setting is missing from config file 
 
can you please try adding this to your dovecot.conf and see if it fixes the 
problem? if yes, i'll see if i can add a default for this setting into the 
configfile

Comment 4 Paul Dickson 2006-02-01 16:39:27 UTC

Setting it to the new default value (%08Xu%08Xv) resolved this issue, both for
plain text and SSL.

Comment 5 Petr Rockai 2006-02-09 11:15:11 UTC

To relnotes: Could we please have something in the spirit of the following 
text added to FC5 release notes? I don't know of a technical solution to this 
problem that would be plausible, so probably documenting this behaviour in 
relnotes is the best compromise. 
 
The default setting of pop3_uidl_format for dovecot pop3 server changed from 
previous versions of Fedora Core. If you already use dovecot pop3, your 
setting may be different than the new default, so please make sure to check 
this and change it accordingly. If the uidl format changes in upgrade, all 
mails that are kept on the server by pop3 clients will be re-downloaded. This 
may or may not be a problem depending on situation.

Comment 6 Karsten Wade 2006-02-09 17:33:56 UTC

http://fedoraproject.org/wiki/Docs/Beats/PackageNotes contains a note about
dovecot that seems to address this situation and others.

If this particular change is worth highlighting above others, for example
because it is more likely to happen to Fedora users, than please include it.

You can edit the wiki directly (let me know if you don't have permissions and
I'll add you to EditGroup), or let us know here if you think this more detailed
entry is necessary.

Thanks for thinking of the release notes!

Comment 7 Petr Rockai 2006-03-14 09:47:34 UTC

I suppose what is there is sufficient. Closing this bug.