[Users] [Bug 4150] New: Enhancement to support IMAP and SMTP CLIENTID capabilities

noreply at thewildbeast.co.uk noreply at thewildbeast.co.uk
Tue Jan 22 00:37:38 CET 2019


            Bug ID: 4150
           Summary: Enhancement to support IMAP and SMTP CLIENTID
    Classification: Unclassified
           Product: Claws Mail
           Version: 3.17.3
          Hardware: All
                OS: All
            Status: NEW
          Severity: enhancement
          Priority: P3
         Component: Other
          Assignee: users at lists.claws-mail.org
          Reporter: danielf at linuxmagic.com

Created attachment 1954
Claws patch to enable CLIENTID capability

A recent patch to libetpan exposed an additional security capability called

The pull request which added this functionality to libetpan can be found here:

There's RFC drafts currently in the works for both the SMTP and IMAP "CLIENTID"
SMTP - https://tools.ietf.org/html/draft-storey-smtp-client-id-05
IMAP - https://tools.ietf.org/html/draft-yu-imap-client-id-00

The clientid can be viewed in the "preferences for current account" page, but
can only be edited by directly editing the accountrc file.

This patch adds support for the CLIENTID capability in the Claws Email client.

This is intended for email servers that have the CLIENTID capability enabled.  

The CLIENTID command is a an extra security layer offered by some SMTP/IMAP

In the advent of a CLIENTID enabled server advertising support for CLIENTID,
Claws will be able to correctly present a CLIENTID via the CLIENTID verb.

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