missing +w perm

[Aki Tuomi]

> On 27/05/2021 22:24 Jeff Abrahamson <jeff at p27.eu> wrote:
> 
> 
> I've started seeing the following error in mail.err for precisely one user on precisely one domain:
> 
> > Error: mkdir(/var/mail/vmail//jeff/mail) failed: Permission denied (euid=1000(jeff) egid=1001(jeff) missing +w perm: /var/mail/vmail/, dir owned by 4000:4000 mode=0755)
> > Error: Mailbox INBOX: Failed to autocreate mailbox: Internal error occurred.
> In mail.log I see a bit more:
> > Warning: Failed to parse address from `From_'-line: Missing domain
> >  Error: mkdir(/var/mail/vmail//jeff/mail) failed: Permission denied (euid=1000(jeff) egid=1001(jeff) missing +w perm: /var/mail/vmail/, dir owned by 4000:4000 mode=0755)
> >  Error: mkdir(/var/mail/vmail//jeff/mail) failed: Permission denied (euid=1000(jeff) egid=1001(jeff) missing +w perm: /var/mail/vmail/, dir owned by 4000:4000 mode=0755)
> >  Error: Mailbox INBOX: Failed to autocreate mailbox: Internal error occurred. Refer to server log for more information.
> >  save failed to open mailbox INBOX: Mailbox INBOX: Failed to autocreate mailbox: Internal error occurred.
> > 
> And yet there's no apparent problem sending and receiving mail for user jeff, for all domains handled by the server. Other users have no issues. The /var/mail/vmail/ hierarchy is all owned by vmail:vmail (4000:4000) and directories are all 0755.
> I suspect a red herring except it's been continuing for a week now. I was reading this page (following some searching), but it doesn't seem pertinent in the end.
> > https://wiki2.dovecot.org/MailLocation/mbox#A.2BAC8-var.2BAC8-mail.2BAC8_dotlocks
> > 
> Any suggestions what this might be?
> 
> -- 
> Jeff Abrahamson
> +33 6 24 40 01 57
> +44 7920 594 255
> 
> http://p27.eu/jeff/
> http://mobilitains.fr/

This indicates your mail process is being ran as jeff:jeff instead of vmail:vmail.

Can you try `doveadm auth test yourusername` and `doveadm user yourusername` to ensure you are not ending up with uid=jeff gid=jeff somehow?

Aki