domain name problem.

[Cindy Xin <cindy@cvs.openbsd.org>]

Hi,

Our LAN (not connect to the Internet) used to have a SUNOS 4.1 as the 
NIS server. Recently, we replace it with a PC running OPENBSD 2.1.

Every aspect of the YP works fine, and all the clients can "ypwhich"
and "ypcat xxx" correctly. While when we tried to send an email on a 
client running Solaris 2.5, we got the following error:

Cannot bind to domain XXXXXX: no such map in server's domain: Bad file number

And the mail can never be sent out, simply lost...
(Running "domainname" on the client still give the corrent domain name.)

Any suggestions are highly appreciated.

thanks,
cindy