Apparent Maildir permission issue

[Steffen Kaiser]

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On Mon, 16 Jan 2017, Mark Foley wrote:

I've added some infos from other posts as well

> I've just upgraded from Slackware 14.1 to 14.2. I've not done anything with dovecot -- it's the
> same version that was running before the upgrade. However, now I'm getting a permission error:
>
> /var/log/maillog:
>
> Jan 16 13:09:44 mail dovecot: imap(mark): Error: opendir(/home/HPRS/mark/Maildir) failed: Permission denied (euid=3000026(HPRS\mark) egid=100(users) missing +r perm: /home/HPRS/mark/Maildir, conflicting dir uid=10001(HPRS\mark))
> Jan 16 13:09:44 mail dovecot: imap(mark): Error: stat(/home/HPRS/mark/Maildir/.Trash) failed: Permission denied (euid=3000026(HPRS\mark) egid=100(users) missing +x perm: /home/HPRS/mark/Maildir, conflicting dir uid=10001(HPRS\mark))

1) Why does both UIDs 3000026 and 10001 translate back to HPRS\mark ? 
What HPRS\mark translates to?

> Permission on that folder are:
>
> $ ls -ld /home/HPRS/mark/Maildir
> drwx------ 17 HPRS\mark domusers 4096 Dec  7 23:07 /home/HPRS/mark/Maildir/

2) I guess this HPRS\mark is 10001 ? (And not 3000026)

> Permissions are unchanged since before the backup.

"backup"? You've restored the Maildir's from somewhere else? What was the 
_numerical_ UID within the backup and what is it now?

> This is the only user having this permission problem. All other
> Thunderbird/dovecot users are getting mail file. They all have the same 
> permissions set on their Maildir folder.

3) Does all users have two numerical UIDs? Which numerical UID does the 
files on the filesystem belong to? to >3000000 or to 1xxxx ?

> On the other hand, the other user I mentioned in my Jan 24 17:15 
> message, shay, also shows this UID/EUID discrepancy, but that does
> not prevent her from getting mail and there is no permission denied 
> error on her messages.

What are those Error messages? I mean the highligted part of Error: 
**opendir**(/home/HPRS/mark/Maildir) failed .

====

4) In which way do you assign the uid Dovecot is using to access the 
filesystem? Does your userdb return ExtraFields like, 
http://wiki2.dovecot.org/UserIds?highlight=%28system_user%29 ? Are they 
different between mark and shay?

If the numerical UID is derived from the system, check out

id mark 
id shay

It looks like your users login with "mark" only? Or are they using 
HPRS\mark ?

- -- 
Steffen Kaiser
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