[bug#42899] [PATCH 07/10] services: dovecot: Add 'mail-attribute-dict' configuration option.

[Alexey Abramov <levenson@mmer.org>]

* gnu/services/mail.scm (dovecot-configuration): Define 'mail-attribute-dict'
  directive to support IMAP METADATA extension.:

Signed-off-by: Alexey Abramov <levenson@mmer.org>
---
 gnu/services/mail.scm | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/gnu/services/mail.scm b/gnu/services/mail.scm
index 1d5d322a53..f2b9774bfd 100644
--- a/gnu/services/mail.scm
+++ b/gnu/services/mail.scm
@@ -1126,6 +1126,11 @@ disabled.")
 @samp{mdbox-rotate-size}.  This setting currently works only in Linux
 with some file systems (ext4, xfs).")
 
+  (mail-attribute-dict
+   (string "file:%h/dovecot-attributes")
+   "Activate the metadata storage of @code{IMAP METADATA} extension (RFC 5464), which allows
+per-mailbox, per-user data to be stored and accessed via IMAP commands.")
+
   (mail-attachment-dir
    (string "")
    "sdbox and mdbox support saving mail attachments to external files,
-- 
2.27.0