Courier IMAP Server

a fast, scalable, enterprise IMAP server that uses Maildirs.

Free software · courier-mta.org

Open Courier IMAP Server in AirStack

What Courier IMAP Server’s own pages say

What it says it doesa fast, scalable, enterprise IMAP server that uses Maildirs. courier-mta.org
IntegrationsExim, Postfix, Qmail courier-mta.org
Licensedistributed under the terms of the GNU General Public License. courier-mta.org

Each value is a quote AirStack found on the product’s own pages, read 2026-11-05. A missing field means AirStack has not found it on its pages.