Webmail login failure

[jackleung]

Dear Sir,
I am using Fedora 4 and Plesk 8.

Everything is okay before.
After reboot the server, I don't know why can't login webmail (horde) and show messages below:

===================================
A fatal error has occurred
Auth_imp: Required IMAP extension not found.
Details have been logged for the administrator.
===================================

Thanks for your kindly help
Jack

[vunlop]

Can you stop httpd service on boot command below
#chkconfig httpd off
and start psa on boot command below
#chkconfig psa on

# reboot
Good lucks.

[Paly69]

Running RHEL 4, Plesk 8.01

Changed IP addresses (server moved to new hosting provider) and now when I try to access webmail, I get:

A fatal error has occurred
Auth_imp: Required IMAP extension not found.
Details have been logged for the administrator.

Warning: Unknown(): Unable to call imap_errors() - function does not exist in Unknown on line 0

Warning: Unknown(): Unable to call imap_alerts() - function does not exist in Unknown on line 0

Tried turning off httpd startup in chkconfig, (psa was already set to boot that way...)
Rebooted, but no joy.

Any help would be appreciated.

Thanks,
Jim