<li>Basic info of in/out emails are stored in SQL tables: <code>maddr</code>, <code>msgs</code>, <code>msgrcpt</code>. Quarantined emails are stored in <code>quarantine</code>, it requires other 3 tables. If you don't have any quarantined emails, it's safe to delete all records in these 4 tables.</li>
</ul>
</li>
</ul>
<p><strong>WARNING</strong>: Do not restore database <code>mysql</code> exported from old server, it contains SQL usernames/passwords for Roundcube/Amavisd/Policyd/Cluebringer used on old server. New iRedMail server has the same SQL usernames, but different passwords. So please do not restore it.</p>
<h2id="ldap-migrate-mail-accounts">LDAP: migrate mail accounts</h2>
<p>Steps to migrate LDAP mail accounts:</p>
<ul>
<li>Setup a new server with the latest iRedMail, and make iRedAdmin-Pro-LDAP work as expected.</li>
<li>Export mail accounts from LDAP on OLD mail server.</li>
</ul>
<p>Normally, LDAP data can be exported into LDIF format. Here's backup/export script: <ahref="http://www.iredmail.org/wiki/index.php?title=IRedMail/FAQ/Backup">http://www.iredmail.org/wiki/index.php?title=IRedMail/FAQ/Backup</a></p>
<li>There might be some changes in LDAP schema, please find scripts <ahref="https://bitbucket.org/zhb/iredmail/src/default/extra/update/">here</a> to apply all required changes.</li>
<li>Here are all <ahref="http://www.iredmail.org/docs/iredmail.releases.html">upgrade tutorials for iRedMail</a>.</li>
<h2id="mysqlpostgresql-migrate-mail-accounts">MySQL/PostgreSQL: Migrate mail accounts</h2>
<p>All mail accounts are stored in database <code>vmail</code> by default, to migrate mail
accounts, you can simply export this database on old server, then import it
on new server.</p>
<p><strong>IMPORTANT NOTE</strong>: iRedMail-0.8.7 drops several SQL columns, so before you
import backup SQL database, please add them first. It's safe to drop them
after you imported old database on new server.</p>
<pre><codeclass="mysql">mysql> USE vmail;
mysql> ALTER TABLE mailbox ADD COLUMN bytes BIGINT(20) NOT NULL DEFAULT 0;
mysql> ALTER TABLE mailbox ADD COLUMN messages BIGINT(20) NOT NULL DEFAULT 0;
mysql> ALTER TABLE domain ADD COLUMN defaultlanguage VARCHAR(5) NOT NULL DEFAULT 'en_US';
mysql> ALTER TABLE domain ADD COLUMN defaultuserquota BIGINT(20) NOT NULL DEFAULT '1024';
mysql> ALTER TABLE domain ADD COLUMN defaultuseraliases TEXT;
mysql> ALTER TABLE domain ADD COLUMN disableddomainprofiles VARCHAR(255) NOT NULL DEFAULT '';
mysql> ALTER TABLE domain ADD COLUMN disableduserprofiles VARCHAR(255) NOT NULL DEFAULT '';
mysql> ALTER TABLE domain ADD COLUMN defaultpasswordscheme VARCHAR(10) NOT NULL DEFAULT '';
mysql> ALTER TABLE domain ADD COLUMN minpasswordlength INT(10) NOT NULL DEFAULT 0;
mysql> ALTER TABLE domain ADD COLUMN maxpasswordlength INT(10) NOT NULL DEFAULT 0;
mysql> ALTER TABLE alias ADD COLUMN islist TINYINT(1) NOT NULL DEFAULT 0;
</code></pre>
<p>After imported backup SQL databases, please execute below commands to mark
mail alias accounts and drop above newly created columns:</p>
<pre><codeclass="mysql">mysql> USE vmail;
mysql> UPDATE alias SET islist=1 WHERE address NOT IN (SELECT username FROM mailbox);
mysql> UPDATE alias SET islist=0 WHERE address=domain; -- domain catch-all account
-- Store values into new column: domain.settings and drop them
mysql> UPDATE domain SET settings='';
mysql> UPDATE domain SET settings=CONCAT(settings, IF(defaultlanguage IS NULL OR defaultlanguage='', '', CONCAT('default_language:', defaultlanguage, ';')));
mysql> UPDATE domain SET settings=CONCAT(settings, IF(defaultuserquota IS NULL OR defaultuserquota=0, '', CONCAT('default_user_quota:', defaultuserquota, ';')));
mysql> UPDATE domain SET settings=CONCAT(settings, IF(defaultuseraliases IS NULL OR defaultuseraliases='', '', CONCAT('default_groups:', defaultuseraliases, ';')));
mysql> UPDATE domain SET settings=CONCAT(settings, IF(minpasswordlength IS NULL OR minpasswordlength=0, '', CONCAT('min_passwd_length:', minpasswordlength, ';')));
mysql> UPDATE domain SET settings=CONCAT(settings, IF(maxpasswordlength IS NULL OR maxpasswordlength=0, '', CONCAT('max_passwd_length:', maxpasswordlength, ';')));
mysql> UPDATE domain SET settings=CONCAT(settings, IF(disableddomainprofiles IS NULL OR disableddomainprofiles='', '', CONCAT('disabled_domain_profiles:', disableddomainprofiles, ';')));
mysql> UPDATE domain SET settings=CONCAT(settings, IF(disableduserprofiles IS NULL OR disableduserprofiles='', '', CONCAT('disabled_user_profiles:', disableduserprofiles, ';')));
mysql> ALTER TABLE domain DROP defaultlanguage;
mysql> ALTER TABLE domain DROP defaultuserquota;
mysql> ALTER TABLE domain DROP defaultuseraliases;
mysql> ALTER TABLE domain DROP minpasswordlength;
mysql> ALTER TABLE domain DROP maxpasswordlength;
mysql> ALTER TABLE domain DROP disableddomainprofiles;
mysql> ALTER TABLE domain DROP disableduserprofiles;
</code></pre>
<p><strong>IMPORTANT NOTE</strong>: There might be some changes in SQL structure, please read
all upgrade tutorials for your current iRedMail release, then apply SQL
</ul><pstyle="text-align: center; color: grey;">Document published under a <ahref="http://creativecommons.org/licenses/by-nd/3.0/us/"target="_blank">CC BY-ND 3.0</a> license. If you found something wrong, please do <ahref="http://www.iredmail.org/contact.html">contact us</a> to fix it.<script>