Re: [PATCH v6 1/1] send-email: retrieve Message-ID from outlook SMTP server

> Add an option to allow users to specifically enable or disable
> retrieving the Message-ID from the Outlook SMTP server. This can be
> for other hosts mimicking the behaviour of Outlook, or for users who set
> a custom domain to be a CNAME for the Outlook SMTP server.
>
> Co-authored-by: Aditya Garg <gargaditya08@live.com>
> Signed-off-by: Aditya Garg <gargaditya08@live.com>
> ---
> diff --git a/Documentation/git-send-email.adoc b/Documentation/git-send-email.adoc
> @@ -421,6 +421,21 @@ recipient's MUA.
> +--[no-]smtp-outlook-id-tweak::
> +       Outlook servers discard the Message-ID sent via email and assign a
> +       new random Message-ID, thus breaking threads.
> ++
> +--
> +- '--smtp-outlook-id-tweak' will attempt to retrieve the ID from the server
> +  irrespective of the SMTP server being used. Use only if Microsoft is your
> +  email provider.
> +- '--no-smtp-outlook-id-tweak' will disable this tweak irrespective of the
> +  SMTP server being used.
> +--
> ++
> +If not sepcified, the default behaviour will be to enable the tweak only if the
> +SMTP server is 'smtp.office365.com' or 'smtp-mail.outlook.com'.

> diff --git a/git-send-email.perl b/git-send-email.perl
> @@ -60,6 +60,8 @@ sub usage {
>      --smtp-encryption       <str>  * tls or ssl; anything else disables.
> +    --smtp-outlook-id-tweak <0|1>  * This server munges Message-ID. Retrive it from
> +                                     the server and assign to \$message_id.