I recently upgraded from Ubuntu 12.06 to 16.06.
I have an otherwise working Courier IMAP setup with a non-SSL and SSL config. When I reboot, the non-SSL version starts, and the SSL version does not.
I've done a "systemctl enable courier-imap-ssl"
When I reboot it seems to start:
Sep 11 16:14:32 x systemd[1]: Starting Courier Authentification Daemon...
Sep 11 16:14:32 x systemd[1]: Starting LSB: Courier IMAP server...
Sep 11 16:14:32 x systemd[1]: Starting LSB: Courier IMAP-SSL server...
Sep 11 16:14:32 x systemd[1]: Starting LSB: saslauthd startup script...
Sep 11 16:14:32 x systemd[1]: Started Courier Authentification Daemon.
Sep 11 16:14:32 x courier-imap-ssl[3570]: * Starting Courier IMAP-SSL server imapd-ssl
Sep 11 16:14:33 x courier-imap-ssl[3570]: ...done.
Sep 11 16:14:33 x systemd[1]: Started LSB: Courier IMAP-SSL server.
Sep 11 16:14:33 x courier-imap[3569]: * Starting Courier IMAP server imapd
Sep 11 16:14:33 x courier-imap[3569]: ...done.
Sep 11 16:14:33 x systemd[1]: Started LSB: Courier IMAP server.
Sep 11 16:14:33 x systemd[1]: Started LSB: saslauthd startup script.
However when I login shortly after the ssl version's couriertcpd doesn't show up as a process.
If I then "service start courier-imap-ssl" it starts fine and stays up.
Any advice?