imapc_port not working

[David Tildesley]

 Hi Aki,
Thanks. I didn't know that about imapc - but by the way, I finally got it working.
The reason why I am inserting Dovecot between my (single) client and our Exchange server (eventually - I am still testing against imap.gmail.com)  is to that I can manipulate the email with Sieve due to limitations of my client (Genesys).
Give the above scenario, should I use imapc or proxy ?
Thanks for your help.
Regards,
David.

    On Tuesday, 27 October 2020, 10:17:37 pm NZDT, Aki Tuomi <aki.tuomi at open-xchange.com> wrote:  
 
 You know that imapc != imap proxy.

imapc is a thin client, which is a "mail storage provider" like maildir.

imap proxy is when you proxy the connection somewhere. this is done with proxy_ settings in passdb.

You need to specify

ssl_client_ca_dir = /etc/ssl/certs

to get cert verification working with imapc. it's required.

Aki

> On 27/10/2020 10:54 David Tildesley <davotnz at yahoo.co.nz> wrote:
> 
> 
> I have solved the port problem by specifying it in the passdb section as userdb_imapc_port=993
> 
> But:
> This is in the error log when I make a connection from the client:
> 
> Oct 27 08:49:16 imapproxy01 dovecot: auth: Fatal: passdb imap: Cannot verify certificate without ssl_ca_dir or ssl_ca_file setting
> Oct 27 08:49:16 imapproxy01 dovecot: master: Error: service(auth): command startup failed, throttling for 2 secs
> 
> 
> On Tuesday, 27 October 2020, 09:48:49 pm NZDT, David Tildesley <davotnz at yahoo.co.nz> wrote:
> 
> 
> 
> xxxx at imapproxy01:/etc/dovecot/conf.d$ dovecot -n
> # 2.3.7.2 (3c910f64b): /etc/dovecot/dovecot.conf
> # Pigeonhole version 0.5.7.2 ()
> # OS: Linux 5.4.0-1031-azure x86_64 Ubuntu 20.04.1 LTS
> # Hostname: imapproxy01.trf04sdec2hu1b4wur4lazeo3f.px.internal.cloudapp.net
> auth_verbose = yes
> disable_plaintext_auth = no
> imapc_host = imap.gmail.com
> imapc_password = # hidden, use -P to show it
> imapc_port = 993
> imapc_ssl = imaps
> imapc_ssl_verify = no
> imapc_user = xxxxxx at gmail.com
> mail_home = /home/vmail/%u
> mail_location = imapc:~/imapc
> mail_privileged_group = mail
> namespace inbox {
> inbox = yes
> location =
> mailbox Drafts {
> special_use = \Drafts
> }
> mailbox Junk {
> special_use = \Junk
> }
> mailbox Sent {
> special_use = \Sent
> }
> mailbox "Sent Messages" {
> special_use = \Sent
> }
> mailbox Trash {
> special_use = \Trash
> }
> prefix =
> }
> passdb {
> args = host=imap.gmail.com port=993 ssl=imaps
> default_fields = userdb_namespace=gmail userdb_namespace/gmail/list=yes userdb_namespace/gmail/subscriptions=no userdb_namespace/gmail/separator=. userdb_namespace/gmail/prefix=INBOX.gmail. userdb_namespace/gmail/location=imapc: userdb_imapc_host=imap.gmail.com userdb_imapc_user=xxxx at gmail.com userdb_imapc_password=#hidden_use-P_to_show# userdb_imapc_ssl=imaps userdb_imapc_ssl_ca_dir=/etc/ssl/certs userdb_imapc_port=993
> driver = imap
> }
> plugin {
> sieve = file:~/sieve;active=~/.dovecot.sieve
> }
> protocols = " imap"
> ssl_cert = </etc/dovecot/private/dovecot.pem
> ssl_client_ca_dir = /etc/ssl/certs
> ssl_dh = # hidden, use -P to show it
> ssl_key = # hidden, use -P to show it
> userdb {
> driver = prefetch
> }
> 
> On Tuesday, 27 October 2020, 09:16:51 pm NZDT, Aki Tuomi <aki.tuomi at open-xchange.com> wrote:
> 
> 
> 
> > On 27/10/2020 10:08 David Tildesley <davotnz at yahoo.co.nz> wrote:
> > 
> > 
> > Hi,
> > 
> > Dovecot v2.3.7.2 on Ubuntu 18.04LTS
> > 
> > I have configured for imap proxy to imap.gmail.com
> > 
> > However whilst the imapc_host setting is working, imapc_port is not - it ignores the value I set and dovecot always tries to connect to gmail on port 143 (as per error log output).
> > 
> > I have the imapc settings in the 10-mail.conf which gets loaded by dovecoat.conf
> > 
> > Looks like a bug.
> > 
> > Any assistance would appreciated.
> > 
> > Regards,
> > David.
> 
> 
> Can you provide output of `doveconf -n`?
> 
> Aki
>
  
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