Exim ACL Ratelimit Database Not Available

In your Exim logs you may see errors like this: Warning: ACL “warn” statement skipped: condition test deferred: ratelimit database not available temporarily rejected connection in ?connect? ACL: ratelimit database not available This likely means the Exim cache databases are corrupted. You can clear them by running: rm -fv /var/spool/exim/db/* Then restart Exim. The files…

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Quota Errors in Exim’s Panic Log

In cPanel 11.25, you may be seeing errors like this in /var/log/exim_paniclog: 2010-04-15 12:33:27 failed to expand condition “${if exists {$home/etc/$domain/quota}{${if > {${lookup{$local_part}lsearch{$home/etc/$domain/quota}{$value}{0}}}{0}{${if eq {${if exists {$home/mail/$domain/$local_part/maildirsize}{1}{0}}}{0}{${if > {${run {/usr/local/cpanel/bin/eximwrap GETDISKUSED $local_part $domain}}}{${lookup{$local_part}lsearch{$home/etc/$domain/quota}{$value}{0}}}{true}{false}}}{${perl{checkuserquota}{$domain}{$local_part}{$message_size}{${lookup{$local_part}lsearch{$home/etc/$domain/quota}{$value}}}{$home/mail/$domain/$local_part/maildirsize}}}}}{false}}}{false}}” for virtual_user_maildir_overquota router: absolute value of integer “10485760000” is too large (overflow) To fix this, run : /scripts/reset_mail_quotas_to_sane_values –force –confirm –verbose…

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Changing a Site’s IP Address

There are three ways to change a site’s IP address on a cPanel server: Via WHM: Go to WHM > Change site’s IP Address , select the account, then select the IP Via Command Line: /usr/local/cpanel/bin/setsiteip -u $user $ip Manually: (This is also useful for changing the IP address of a single domain in an…

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Installing and Configuring Dovecot

Enabling Dovecot You can convert a server from cppop or Courier IMAP to dovecot by running the following command: /scripts/setupmailserver dovecot   Configuring Dovecot Most relevant configurations can be made via WHM > Mailserver Configuration, but you can also change these via the config templates. You generally have to save the config via WHM at…

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Understanding Dovecot IMAP and Maildir

Maildir (run by Courier IMAP or Dovecot) is a mail format used in conjunction with an MTA to store email on the server as separate files within folders. This post covers Courier IMAP as a service, not in terms of mail client usage. Directory Structure A user’s email is store in ”’/home/user/mail/<domain>/<emailuser>/…”’. Below is a…

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Modifying SMTP Relay Settings for Exim

cPanel’s stock installation of Exim includes a Tailwatchd driver called Antirelayd . Antirelayd is a daemon that checks /var/log/maillog for POP3 and IMAP logins and keeps track of valid logins for SMTP relaying. It reads /etc/relayhosts file automatically which is dynamically-updated, so any IPs that you add to this file will not be retained. By…

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