variable forwarding buglet

Jan-Pieter Cornet johnpc at
Fri Jun 22 18:07:22 EEST 2018

I wanted to forward information from the director to the backend dovecot (original login name), so I had the userdb on the director return a forward_ologin variable.

However, when I tried to use that variable in the "password_key" query on the backend dovecot, ${forward_ologin} was expanded to UNSUPPORTED_VARIABLE_forward_ologin.

After testing a bit and looking around in the source a bit, and turning on debugging logging, it appeared that the forwarded variables actually appear as "passdb/userdb extra fields". So in my case, the forwarded information is available as %{passdb:forward_ologin}.

So, problem solved, but this is either an implementation bug, or a documentation bug, or oversight.

Jan-Pieter Cornet <johnpc at>
Systeembeheer XS4ALL Internet bv

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