Installation ISPManager Pro Hangs

[netbuy]

Hi,

I have a problem installing the pro version of ISPManager. Everything is fine untill the checks:

|http:OK │
│ https:OK │
│ cgi:OK │
│ ssi:OK │
│ Checking smtp ... │

and that's where it hangs. I've checked the log file but couldn't find any errors. This is the last line of the log:

INFO Request [pkgctl][root] 'out=text&func=emaildomain.edit&name=isptest%2Emgr&dtype=nouser&owner=mgrtest&greylist=off&sok=yes'

does anyone know a solution to this? Thank you in advance.

--edit
some more details
OS: CentOS 5
and it's a virtual machine running under Xen

[netbuy]

solved:

in the /var/log/maillog there were permission errors with /dev/null
so following line fixed everything

chmod 666 /dev/null

[Skam]

Well, topic closed.