Is there a way to send custom warning to all IMAP users?

Dan White dwhite at
Mon Mar 28 13:50:34 EDT 2016

On 03/28/16 14:16 -0300, francis picabia via Info-cyrus wrote:
>We have migrated all email on a server to a cloud email platform.
>The users were notified by email beforehand, but hundreds are still
>connecting to the standard IMAP service.  They may not
>even remember they have set up devices to connect here.
>Is there a way to send a custom warning through some setting,
>similar to how quota warnings are generated.  Really if there is
>any error I can fake, and customize the message, it would work.
>We are using Linux, pam authentication, Cyrus with saslauthd.
>Just shutting down the service is also a solution, but given over 600
>unique users have logged in today, I'd rather not dump that load on
>the service desk.

You can set a system wide motd, but it's unlikely all clients will honor

See the cyradm manpage.

Dan White

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