I've got two problems. First of all I can't login in sac. When I'm accessing http://mymailserver.mydomain.com/sac I get a login screen, When I'm trying to login wit sxadmin and my password I get the message:
Could not login
Could not fetch confguration information.
Possible problems with administration server
I've tried a couple of solutions on your forum but they didn't work. My hostfile is correct. I've got only one line with somthing like this:
127.0.0.1 localhost
12.34.56.78 mymailserver.mydomain.com mymailserver
A couple of days ago I could use the sac management service and nothing changed (had the problem before and sometimes a reboot fixed my problem, but it isn't now and i don't want to continue rebooting

The 2nd problem is my mailserver isn't sending mail from the webmail site. Maybe a configuration problem ? (But I can't check it now because sac isn't working

thanks in advance