Lda fatal: setgid (102 from userdb lookup) failed

[Aki Tuomi]

On 4.12.2018 3.27, James Brown via dovecot wrote:
> Sorry if this is a nubbie question, but I’m getting:
>
> lda(jlbrown at bordo.com.au)<4444><QFg5KRHVBBxcEQAAYBwt+A>: Fatal: setgid(102 from userdb lookup) failed with euid=501(jlbrown), gid=20(staff), egid=20(staff): Operation not permitted (This binary should probably be called with process group set to 102 instead of 20(staff))
>
> How can I fix this?
>
> (macOS Mojave, Dovecot 2.3.4)
>
> Thanks,
>
> James.

You need to tell your MTA to execute dovecot-lda as the target user as
you are using per-user UIDs.

Aki