[Dovecot] /etc/passwd authentication anomalies

Curtis Maloney cmaloney at cardgate.net
Tue Apr 10 08:49:03 EEST 2007

Stewart Dean wrote:
> Apr  9 14:44:59 mercury mail:err|error dovecot: auth(default): 
> passwd-file /etc/passwd: User root has invalid UID 0
> This is a niggle, but is there something I should do differently, or is 
> DC just annoyed at what IBM has done with /etc/passwd?

Check out the "first_valid_uid" and "first_valid_gid" settings.  These are to 
stop people using system accounts for mail (generally held to be a "Bad Thing").

 From the documentation, the default for first_valid_gid is 1.

Curtis Maloney
cmaloney at cardgate.net

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