• The BIND DNS server has already been deprecated and removed from Plesk for Windows.
    If a Plesk for Windows server is still using BIND, the upgrade to Plesk Obsidian 18.0.70 will be unavailable until the administrator switches the DNS server to Microsoft DNS. We strongly recommend transitioning to Microsoft DNS within the next 6 weeks, before the Plesk 18.0.70 release.
  • The Horde component is removed from Plesk Installer. We recommend switching to another webmail software supported in Plesk.

Increase number of IMAP connections

M

msslovi0

Guest
One of my users gets an error when connecting to the mailserver through IMAP using Thunderbird:

Unable to connect to your IMAP Server. You may have exceeded the maximum number of connections to this server.

How can I increase the maximum number of connections to my IMAP Server? Haven't found anything within Plesk, is there a change to do so on the shell?

Matt
 
Try changing the MAXPERIP value (defaults to 4) in:
/usr/lib/courier-imap/etc/imapd
and
/usr/lib/courier-imap/etc/pop3d

(actual path may be OS distro dependent, this post assumes RedHat like distro)

After making changes, remember to restart the courier-imap service.
 
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