I'm trying to setup a mail server ! Everything seems to be ok (after some loooong days) but when I tried to read mail with IMAP server :
Apr 18 17:38:48 sd-84941 dovecot: imap(dlp): Error: open(/data/maildir/dlp/cur/1460993401.13028_0.sd-84941:2,) failed: Permission denied (euid=1000(michael) egid=1000(michael) missing +r perm: /data/maildir/dlp/cur/1460993401.13028_0.sd-84941:2,, we're not in group 8(mail), dir owned by 0:8 mode=0777)
Mails are in the maildir folder but I can't read them because of permissions...
-rw-rw---- 1 root root 2363 Apr 18 17:55 1460994924.16416_0.sd-84941
But if chmod 777 It work (but I can't do this by hand everytimes..) :
-rwxrwxrwx 1 root root 2363 Apr 18 17:55 1460994924.16416_0.sd-84941:2,
What's happen ? Who give file permission ? fetchmail, procmail or dovecot ?
----- Edit ------
Thanks for your answers, @tripleee. I 'll try to give details :
I've installed sendmail, procmail, fetchmail, dovecot & roundcube :
Sendmail & Roundcube : default install.
In /etc/procmailrc (I prefer a global conf vs the user way), we have :
MAILDIR=/data/mails/ DEFAULT=$MAILDIR/ LOGFILE=/var/log/procmail VERBOSE=on
In /etc/fetchmailrc :
set syslog set daemon 120 poll mail.interpc.fr with nodns, with protocol POP3, user "dlp", with password mypass option keep
I've created a vmail user :
sudo addgroup --gid 5000 vmail sudo adduser --home /data/mails/ --uid 5000 --gid 5000 --shell /bin/false vmail
In /etc/dovecot/users (with vmail's uid & gid) :
In /etc/dovecot/conf.d/10-auth.conf, I've changed to :
disable_plaintext_auth = no #!include auth-system.conf.ext !include auth-passwdfile.conf.ext
In /etc/dovecot/conf.d/10-mail.conf : mail_location = maildir:/data/mails/
- Problem description : mails are copied to my mail folder but with root permissions so Roundcube can't open mails
root@sd-84941:/home/michael# ls -al /data/mails/cur/ total 48 drwxr--r-- 2 vmail vmail 4096 Apr 21 15:08 . drwxr--r-- 5 vmail vmail 4096 Apr 21 15:08 .. -rwxr--r-- 1 root root 29635 Apr 21 13:31 1461238276.4519_0.sd-84941:2, -rwxr--r-- 1 root root 3740 Apr 21 13:45 1461239150.5706_0.sd-84941:2, -rw-r--r-- 1 root root 2953 Apr 21 15:04 1461243887.17704_0.sd-84941:2,
Thanks for helping me...