[Dovecot] Clients can't retrieve new emails

[Jeff Van Epps]

On Tue, Aug 9, 2011 at 1:03 PM, Willie Gillespie <
wgillespie+dovecot at es2eng.com> wrote:

> On 08/09/2011 08:23 AM, Jeff Van Epps wrote:
>
>> Apologies for the repeat post. I just want to take one more try to find
>> someone who can help or point me in a direction on this. Anyone?
>>
>> ---------- Forwarded message ----------
>> From: Jeff Van Epps<jeff.vanepps at gmail.com>
>> Date: Mon, Aug 1, 2011 at 8:59 AM
>> Subject: Clients can't retrieve new emails
>> To: dovecot at dovecot.org
>>
>>
>> In a formerly working environment suddenly clients aren't notified of
>> new emails and can't retrieve new emails. Server is Ubuntu 11.04 dovecot
>> 1.2.15. Clients which fail are a Pre2 webOS 2.1 and TouchPad webOS 3.0
>> (those are OS versions, I don't know which particular flavor/version the
>> IMAP clients are); there is also a Thunderbird 3.1.11 client on the same
>> system as the server which works properly. The clients never report an
>> error. I got as far as configuring rawlog:
>>
>> in:
>> ~A2 NAMESPACE
>> ~A3 SELECT "INBOX"
>> ~A4 LIST "" *
>> ~A5 UID STORE 0 +FLAGS.SILENT (\Seen)
>> ~A6 UID STORE 0 +FLAGS.SILENT (\Seen)
>>
>
> So the client never requests any mail.  Just the list of folders.
>
>
>  out:
>> * OK [RAWLOG TIMESTAMP] 2011-08-01 08:28:33
>> ~A1 OK [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE
>> SORT SORT=DISPLAY THREAD=REFERENCES THREAD=REFS MULTIAPPEND UNSELECT
>> IDLE CHILDREN NAMESPACE UIDPLUS LIST-EXTENDED I18NLEVEL=1 CONDSTORE
>> QRESYNC ESEARCH ESORT SEARCHRES WITHIN CONTEXT=SEARCH LIST-STATUS] Logged
>> in
>> * NAMESPACE (("" "/")) NIL NIL
>> ~A2 OK Namespace completed.
>> * FLAGS (\Answered \Flagged \Deleted \Seen \Draft NonJunk Junk)
>> * OK [PERMANENTFLAGS (\Answered \Flagged \Deleted \Seen \Draft NonJunk
>> Junk \*)] Flags permitted.
>> * 101 EXISTS
>> * 0 RECENT
>> * OK [UNSEEN 63] First unseen.
>> * OK [UIDVALIDITY 1222650706] UIDs valid
>> * OK [UIDNEXT 863] Predicted next UID
>> * OK [HIGHESTMODSEQ 1903] Highest
>> ~A3 OK [READ-WRITE] Select completed.
>> * LIST (\NoInferiors \UnMarked) "/" "Trash"
>> * LIST (\NoInferiors \UnMarked) "/" "Sent"
>> * LIST (\NoInferiors \UnMarked) "/" "INBOX"
>> ~A4 OK List completed.
>> ~A5 BAD Error in IMAP command UID STORE: Invalid uidset
>> ~A6 BAD Error in IMAP command UID STORE: Invalid uidset
>>
>>
>> I've searched and read messages saying that there is no such thing as
>> UID 0. Okay. Why are the clients suddenly trying to use it? Why doesn't
>> the server just ignore it? (it seems like it may be terminating the
>> connection)
>>
>
> I tried the same commands against my Dovecot server and it did not
> terminate the connection.  I may be running a different version than you
> though.
>
>
>  What can I do about it? (I'll nag HP about the client side but I don't
>> expect quick action. The server on the other hand is in my house.)
>>
>
> That's the real question.  I'd be curious to see what Thunderbird does
> since you say it has the same problem.  Do you have rawlogs from that?
>
> Thunderbird works properly, i.e. it succeeds in retrieving new emails. I
don't have the rawlog at the moment but I recall that it did not do any "UID
STORE 0". I wonder what the clients think they are accomplishing with that
command.

I'll start searching for an Ubuntu PPA for version 2 Dovecot so I can see
whether the same thing still happens.

>
>>
>> dovecot -n output:
>> # 1.2.15: /etc/dovecot/dovecot.conf
>> # OS: Linux 2.6.38-11-generic i686 Ubuntu 11.04
>> log_timestamp: %Y-%m-%d %H:%M:%S
>> ssl_cert_file: /etc/ssl/certs/lordbah.com.crt
>> ssl_key_file: /etc/ssl/private/lordbah.com.**key
>> ssl_key_password: --redacted--
>> disable_plaintext_auth: no
>> verbose_ssl: yes
>> login_dir: /var/run/dovecot/login
>> login_executable: /usr/lib/dovecot/imap-login
>> login_process_per_connection: no
>> login_processes_count: 5
>> login_max_processes_count: 20
>> verbose_proctitle: yes
>> mail_privileged_group: mail
>> mail_location: mbox:~*/mail:INBOX=/var/mail/***%u
>> mail_debug: yes
>> mbox_write_locks: fcntl dotlock
>> mail_executable: /usr/lib/dovecot/rawlog /usr/lib/dovecot/imap
>> imap_client_workarounds: tb-extra-mailbox-sep
>> auth default:
>>   verbose: yes
>>   debug: yes
>>   passdb:
>>     driver: pam
>>   userdb:
>>     driver: passwd
>>
>>