[HowTo] Replace courier with dovecot

[aseques]

Zothos Wrote:with the conf taken from the howto, i get a warning with me newest dovecot (upgraded today)

Code:

Warning: mail_extra_groups setting was often used insecurely so it is now deprecated, use mail_access_groups or mail_privileged_group instead

From the original dovecot.conf:
# Group to enable temporarily for privileged operations. Currently this is
# used only for creating mbox dotlock files when creation fails for INBOX.
# Typically this is set to "mail" to give access to /var/mail.
mail_privileged_group = mail

The setting from the ispcp was the old default and now the recomended is the mail_privileged_group wich should be fine unless you plan to use shared folders.