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−If you have installed vmm 0.3.x you have to proceed this steps:
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−
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−    * stop Postfix and Dovecot
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−    * backup/dump your database.
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−    * backup/dump your database!
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−    * execute upgrade.sh
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−    * set permissions for replaced views:
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−        GRANT SELECT ON dovecot_user, dovecot_password TO your_dovecot_dbuser;
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−        GRANT SELECT ON postfix_transport TO your_postfix_dbuser;
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−    * update user_query in /etc/dovecot/dovecot-sql.conf:
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−    * user_query = \
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−         SELECT home, uid, gid, 'maildir:'||mail AS mail FROM dovecot_user WHERE userid = '%u'
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−    * update password_query in /etc/dovecot/dovecot-sql.conf:
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−        password_query = \
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−         SELECT "user", password FROM dovecot_password WHERE "user"='%u' AND %Ls
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−    * edit the pgsql parameters hosts, user, password and dbname in:
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−        $(postconf -h config_directory)/pgsql-smtpd_sender_login_maps.cf
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−        $(postconf -h config_directory)/pgsql-transport.cf
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−        $(postconf -h config_directory)/pgsql-virtual_mailbox_domains.cf
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−    * check the value of option transport in section misc in
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−      /usr/local/etc/vmm.cfg
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−    * start Dovecot and Postfix
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−
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−else:
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−
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−    * read INSTALL