New: change.mail.attachment.size.html.
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@ -2,6 +2,7 @@ We're working on migrating [old wiki documents](http://www.iredmail.org/wiki) to
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# Install iRedMail
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* [Perform silent/unattended iRedMail installation](src/default/installation/unattended.iredmail.installation.md)
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# How to
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* [Change mail attachment size](src/default/howto/0-change.mail.attachment.size.md)
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* [Completely disable Amavisd + ClamAV + SpamAssassin](src/default/howto/0-completely.disable.amavisd.clamav.spamassassin.md)
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* [Enable SMTPS service (SMTP over SSL, port 465)](src/default/howto/0-enable.smtps.md)
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* [Amavisd + SpamAssassin not working, no mail header (X-Spam-*) inserted.](src/default/howto/1-amavisd.no.x-spam.headers.md)
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36
SUMMARY.md
36
SUMMARY.md
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@ -1780,3 +1780,39 @@
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* [Turn on debug mode in OpenLDAP](turn.on.debug.mode.in.openldap.md)
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# Frequently Asked Questions
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* [Why append timestamp in maildir path](why.append.timestamp.in.maildir.path.md)
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# Install iRedMail
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* [Perform silent/unattended iRedMail installation](unattended.iredmail.installation.md)
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# How to
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* [Change mail attachment size](0-change.mail.attachment.size.md)
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* [Completely disable Amavisd + ClamAV + SpamAssassin](0-completely.disable.amavisd.clamav.spamassassin.md)
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* [Enable SMTPS service (SMTP over SSL, port 465)](0-enable.smtps.md)
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* [Amavisd + SpamAssassin not working, no mail header (X-Spam-*) inserted.](1-amavisd.no.x-spam.headers.md)
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* [Disable spam virus scanning for outgoing mails](1-disable.spam.virus.scanning.for.outgoing.mails.md)
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* [Quarantining](1-quarantining.md)
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* [Allow user to send email without authentication](allow.user.to.send.email.without.authentication.md)
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* [Configure Thunderbird as mail client (IMAP, SMTP and global ldap address book)](configure.thunderbird.md)
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* [Ignore Trash folder in mailbox quota](ignore.trash.folder.in.quota.md)
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* [LDAP: Add an alias domain](ldap.add.alias.domain.md)
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* [LDAP: Add a mail alias account](ldap.add.mail.alias.md)
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* [LDAP: Add a mail list account](ldap.add.mail.list.md)
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* [LDAP: User mail forwarding.](ldap.user.mail.forwarding.md)
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* [Monitor incoming and outgoing mails with BCC](monitor.incoming.and.outgoing.mails.with.bcc.md)
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* [Pipe incoming email for certain user to external script ](pipe.incoming.email.for.certain.user.to.external.script.md)
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* [Force Dovecot to recalculate mailbox quota](recalculate.mailbox.quota.md)
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* [SQL: Create an mail alias account with SQL command line](sql.create.mail.alias.md)
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* [Store SpamAssassin bayes in SQL](store.spamassassin.bayes.in.sql.md)
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# Third-party integrations.
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* [SOGo: How to install SOGo on CentOS 6 with iRedMail (MySQL backend)](sogo-centos-6-mysql.md)
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# Cluster solutions
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* [An Ultra-HA, full Mult-Master E-mail cluster with iRedMail, MariaDB, and IPVS ](full.mult-master.iredmail.cluster.with.mariadb.and.ipvs.md)
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# Backup, restore and migration
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* [Migrate iRedAdmin open source edition to iRedAdmin-Pro](migrate.or.upgrade.iredadmin.md)
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* [Migrate old iRedMail server to the latest stable release](migrate.to.new.iredmail.server.md)
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* [Password hashes](password.hashes.md)
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# Troubleshooting and Debug
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* [Turn on debug mode in Amavisd](turn.on.debug.mode.in.amavisd.md)
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* [Turn on debug mode in Cluebringer](turn.on.debug.mode.in.cluebringer.md)
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* [Turn on debug mode in Dovecot](turn.on.debug.mode.in.dovecot.md)
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* [Turn on debug mode in OpenLDAP](turn.on.debug.mode.in.openldap.md)
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# Frequently Asked Questions
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* [Why append timestamp in maildir path](why.append.timestamp.in.maildir.path.md)
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@ -0,0 +1,70 @@
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# Change mail attachment size
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To change mail attachment size, we have to change 3 settings.
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## Change message size limit in postfix
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Postfix is MTA, so we have to change its setting to transfer mail with large
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attachment.
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To allow mail with 100Mb attachment, please change 'message_size_limit' setting
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like below:
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```
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# postconf -e message_size_limit='104857600'
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```
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Restart postfix to make it work:
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```
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# /etc/init.d/postfix restart
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```
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__NOTES__:
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* `104857600` is 100 (MB) x 1024 (KB) x 1024 (Bit).
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* Mail will be encoded by mail user agent (Outlook, Thunderbird, etc) before
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transferred, the actual message size will be larger than 100MB, you can
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simplily increase above setting to 110Mb or 120Mb to make it work as expected.
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If you use mail clients such as Outlook, thunderbird to send mails, it's now
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ok to sent large attachment with above setting.
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## Change upload file size in webmail
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If you have webmail, you have to change two more settings:
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1. Change PHP setting to allow to upload large attachment
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You should change `memory_limit`, `upload_max_filesize` and `post_max_size` in
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PHP config file `/etc/php.ini`
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* on RHEL/CentOS: it's `/etc/php.ini`
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* on Debian/Ubuntu, it's `/etc/php5/apache2/php.ini`
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* on FreeBSD, it's `/usr/local/etc/php.ini` for Apache, or
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`/etc/php5/fpm/php.ini` for Nginx.
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* on OpenBSD, it's `/etc/php-5.4.ini`. If you're running different PHP release,
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the version number `5.4` will be different.
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```
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memory_limit = 200M;
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upload_max_filesize = 100M;
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post_max_size = 100M;
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```
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2. Change Roundcube webmail settings to allow large attachment
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Change same settings in file `.htaccess` under roundcube root directory:
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* on RHEL/CentOS, it's `/var/www/roundcubemail/.htaccess`
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* on Debian/Ubuntu, it's `/usr/share/apache2/roundcubemail/.htaccess`
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* on FreeBSD, it's `/usr/local/www/roundcubemail/.htaccess`
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* on OpenBSD, it's `/var/www/roundcubemail/.htaccess`
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```
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php_value upload_max_filesize 100M
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php_value post_max_size 100M
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php_value memory_limit 200M
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```
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Restart Apache or Nginx web server to make it work.
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@ -0,0 +1,71 @@
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<html>
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
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<title>Change mail attachment size</title>
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<link href="./css/markdown.css" rel="stylesheet"></head>
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</head>
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<body>
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<div id="navigation">
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<a href="http://www.iredmail.org" target="_blank">iRedMail web site</a>
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// <a href="./index.html">Document Index</a>
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</div><h1 id="change-mail-attachment-size">Change mail attachment size</h1>
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<p>To change mail attachment size, we have to change 3 settings.</p>
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<h2 id="change-message-size-limit-in-postfix">Change message size limit in postfix</h2>
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<p>Postfix is MTA, so we have to change its setting to transfer mail with large
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attachment.</p>
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<p>To allow mail with 100Mb attachment, please change 'message_size_limit' setting
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like below:</p>
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<pre><code># postconf -e message_size_limit='104857600'
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</code></pre>
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<p>Restart postfix to make it work:</p>
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<pre><code># /etc/init.d/postfix restart
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</code></pre>
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<p><strong>NOTES</strong>:</p>
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<ul>
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<li><code>104857600</code> is 100 (MB) x 1024 (KB) x 1024 (Bit).</li>
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<li>Mail will be encoded by mail user agent (Outlook, Thunderbird, etc) before
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transferred, the actual message size will be larger than 100MB, you can
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simplily increase above setting to 110Mb or 120Mb to make it work as expected.</li>
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</ul>
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<p>If you use mail clients such as Outlook, thunderbird to send mails, it's now
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ok to sent large attachment with above setting.</p>
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<h2 id="change-upload-file-size-in-webmail">Change upload file size in webmail</h2>
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<p>If you have webmail, you have to change two more settings:</p>
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<ol>
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<li>Change PHP setting to allow to upload large attachment</li>
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</ol>
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<p>You should change <code>memory_limit</code>, <code>upload_max_filesize</code> and <code>post_max_size</code> in
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PHP config file <code>/etc/php.ini</code></p>
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<ul>
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<li>on RHEL/CentOS: it's <code>/etc/php.ini</code></li>
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<li>on Debian/Ubuntu, it's <code>/etc/php5/apache2/php.ini</code></li>
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<li>on FreeBSD, it's <code>/usr/local/etc/php.ini</code> for Apache, or
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<code>/etc/php5/fpm/php.ini</code> for Nginx.</li>
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<li>on OpenBSD, it's <code>/etc/php-5.4.ini</code>. If you're running different PHP release,
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the version number <code>5.4</code> will be different.</li>
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</ul>
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<pre><code>memory_limit = 200M;
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upload_max_filesize = 100M;
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post_max_size = 100M;
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</code></pre>
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<ol>
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<li>Change Roundcube webmail settings to allow large attachment</li>
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</ol>
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<p>Change same settings in file <code>.htaccess</code> under roundcube root directory:</p>
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<ul>
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<li>on RHEL/CentOS, it's <code>/var/www/roundcubemail/.htaccess</code></li>
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<li>on Debian/Ubuntu, it's <code>/usr/share/apache2/roundcubemail/.htaccess</code></li>
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<li>on FreeBSD, it's <code>/usr/local/www/roundcubemail/.htaccess</code></li>
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<li>on OpenBSD, it's <code>/var/www/roundcubemail/.htaccess</code></li>
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</ul>
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<pre><code>php_value upload_max_filesize 100M
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php_value post_max_size 100M
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php_value memory_limit 200M
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</code></pre>
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<p>Restart Apache or Nginx web server to make it work.</p><br /><p>If you found something wrong in this document, please do <a href="http://www.iredmail.org/contact.html">contact us</a> to fix it.</p></body></html>
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@ -15,6 +15,7 @@
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</ul>
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<h1 id="how-to">How to</h1>
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<ul>
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<li><a href="change.mail.attachment.size.html">Change mail attachment size</a></li>
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<li><a href="completely.disable.amavisd.clamav.spamassassin.html">Completely disable Amavisd + ClamAV + SpamAssassin</a></li>
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<li><a href="enable.smtps.html">Enable SMTPS service (SMTP over SSL, port 465)</a></li>
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<li><a href="amavisd.no.x-spam.headers.html">Amavisd + SpamAssassin not working, no mail header (X-Spam-*) inserted.</a></li>
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