Follow along with the video below to see how to install our site as a web app on your home screen.
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The Horde webmail has been deprecated. Its complete removal is scheduled for April 2025. For details and recommended actions, see the Feature and Deprecation Plan.
We’re working on enhancing the Monitoring feature in Plesk, and we could really use your expertise! If you’re open to sharing your experiences with server and website monitoring or providing feedback, we’d love to have a one-hour online meeting with you.
A self-Signed SSL certificate is used along with PHP 5.6 to run the Horde webmail.
As a workaround, disable TLS encryption for sieve in the Horde configuration file:
Open the file /usr/share/psa-horde/ingo/config/backends.php
Find the section $backends['sieve'] = array(
Change the record:
'usetls' => true
to
'usetls' => false
Save the file with changes.
Create the additional Dovecot configuration file to specify "ssl=no" inside the "protocol sieve {}" section:
# cat /etc/dovecot/conf.d/99-horde-sieve-tlsfix.conf
protocol sieve { ssl = no
}
Restart Dovecot service:
# service dovecot restart