This documentation is for Dovecot v1.x, see wiki2 for v2.x documentation.
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Editor: TimoSirainen
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Revision 19 as of 2008-03-01 07:48:54
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Editor: acw155
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= Client Issues =

It seems to be quite difficult to implement a working IMAP client. Here are some instructions for client implementors:

 * [http://dovecot.org/client-commandments.txt Mark Crispin's Ten Commandments of How to Write an IMAP client].
 * [http://dovecot.org/imap-client-coding-howto.html My IMAP Client Coding Howto]
= Client issues and configuration =
It seems to be quite difficult to implement a working IMAP client. [http://www.imapwiki.org/ClientImplementation Best Practices for Implementing an IMAP Client] tries to help you with it.
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== Apple Mail.app ==
On Max OS X Leopard 10.5 Mail.app support subscribe/unsubscribe by right clicking on the [http://www.outlook-express.eu mailbox] then 'Get Info' a new tab called 'Subscription List' would appear. This list is empty when using dovecot.
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 * You should enable `outlook-idle` and `oe6-fetch-no-newmail` workarounds for IMAP.  * You should enable `outlook-idle` and `delay-newmail` workarounds for IMAP.
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 * Doesn't support creating subfolders with mbox format.
 * Some versions don't support creating subfolders with mbox format. Evolution in Ubuntu Gutsy, 2.12.0-0ubuntu5, does support creating subfolders, at least when the parent folder is empty.
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 * You should enable `tb-extra-mailbox-sep` workaround for IMAP if you're using mbox. [https://bugzilla.mozilla.org/show_bug.cgi?id=29926 Bug report].
 * If you're using [:MailboxFormat/mbox:mbox],
  * You should enable `tb-extra-mailbox-sep` workaround for IMAP. [https://bugzilla.mozilla.org/show_bug.cgi?id=29926 Bug report].
  * You'll have to disable "Server supports folders that contain sub-folders and messages" setting from Thunderbird. [https://bugzilla.mozilla.org/show_bug.cgi?id=284933 Enhancement request].
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 * New mutt versions supporting IDLE command will hang with Dovecot versions earlier than v1.0beta3. Upgrade Dovecot or disable IDLE by setting imap_idle=no in .muttrc.
 * [:mutt:Using mutt with IMAP]
== Pine ==
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== Pine == == SquirrelMail ==
 * Configuration asks IMAP server name for some workarounds. There has been a Dovecot option since 1.4.6 and 1.5.1. For older !SquirrelMail versions, select the "other" option and remove the default INBOX-prefix.
== Horde IMP ==
Dovecot doesn't want any folder prefix, but leaving it empty in login screen will just use the default. So, change the default from `/etc/imp3/servers.conf`. Search for `'folders' => 'mail/'` and remove the `mail/` part. For IMP2 edit `defaults.php3`, search for `$default->folders = 'mail/';` and remove the `mail/` part.
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Seems to be OK. == RoundCube Webmail ==
Works fine.
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== Squirrelmail ==

 * Configuration asks IMAP server name for some workarounds, I'm not aware of Dovecot requiring any so just select the "other" option. By default it uses INBOX-prefix, remove it.
 * [http://www.squirrelmail.org/wiki/ComposeErrorOnSend1 Squirrelmail 1.4.5 has broken APPEND command]. Upgrade to 1.4.6.

== Horde IMP ==

Dovecot doesn't want any folder prefix, but leaving it empty in login screen will just use the default. So, change the default from /etc/imp3/servers.conf. Search for <code>'folders' => 'mail/'</code> and remove the <code>mail/</code> part. For IMP2 edit defaults.php3, search for <code>$default-&gt;folders = 'mail/';</code> and remove the <code>mail/</code> part.
== @Mail Webmail ==
Uses the namespace returned via Dovecot, full support via IMAP/POP3 using [http://atmail.com/ @Mail]. Can also read mailbox quota via the getquotaroot IMAP command.

Client issues and configuration

It seems to be quite difficult to implement a working IMAP client. [http://www.imapwiki.org/ClientImplementation Best Practices for Implementing an IMAP Client] tries to help you with it.

TableOfContents

Apple Mail.app

On Max OS X Leopard 10.5 Mail.app support subscribe/unsubscribe by right clicking on the [http://www.outlook-express.eu mailbox] then 'Get Info' a new tab called 'Subscription List' would appear. This list is empty when using dovecot.

Outlook

  • You should enable outlook-idle workaround with IMAP.

  • You should enable outlook-no-nuls workaround with POP3.

  • Outlook 2003 has problems with older Dovecot's default POP3 UIDL format, which causes it to download the same mails over and over again if "leave mails to server" option is enabled. See pop3_uidl_format setting.

Outlook Express 6

  • Using "Headers only" synchronization is buggy and can cause "Message is no longer available on this server" error when opening a mail. This isn't Dovecot specific problem, and I'm not aware of any possible workarounds at the moment for this in server side.
  • You should enable outlook-idle and delay-newmail workarounds for IMAP.

  • You should enable outlook-no-nuls and oe-ns-eoh workarounds for POP3.

Netscape 4.x

  • You should enable netscape-eoh workaround with IMAP, if you still care about supporting this..

Netscape Mail

I'm not actually sure what version exactly this refers to.

  • You should enable oe-ns-eoh workaround for POP3.

Evolution

  • Some versions don't support creating subfolders with mbox format. Evolution in Ubuntu Gutsy, 2.12.0-0ubuntu5, does support creating subfolders, at least when the parent folder is empty.

Mulberry

Seems to be OK.

Thunderbird

Mutt

  • New mutt versions supporting IDLE command will hang with Dovecot versions earlier than v1.0beta3. Upgrade Dovecot or disable IDLE by setting imap_idle=no in .muttrc.
  • [:mutt:Using mutt with IMAP]

Pine

Seems to be OK.

SquirrelMail

  • Configuration asks IMAP server name for some workarounds. There has been a Dovecot option since 1.4.6 and 1.5.1. For older SquirrelMail versions, select the "other" option and remove the default INBOX-prefix.

Horde IMP

Dovecot doesn't want any folder prefix, but leaving it empty in login screen will just use the default. So, change the default from /etc/imp3/servers.conf. Search for 'folders' => 'mail/' and remove the mail/ part. For IMP2 edit defaults.php3, search for $default->folders = 'mail/'; and remove the mail/ part.

RoundCube Webmail

Works fine.

@Mail Webmail

Uses the namespace returned via Dovecot, full support via IMAP/POP3 using [http://atmail.com/ @Mail]. Can also read mailbox quota via the getquotaroot IMAP command.

None: Clients (last edited 2011-03-31 07:38:08 by TimoSirainen)