Hello,

Currently we had a single network C1 covering 40 clients.

Recently I splitted this network keeping 15 clients on old C1
and 25 moved to a new C2. Routing between C1 and C2
is managed by a Linux system.

On C1 we have a DNS and an Internet connection running on Linux.

Everithing works fine. Clients on both subnetworks C1 and C2 can
access samba server, Internet, server DB on C1 and the coffee machine.

A single exception: moved clients from subnetwork C1 to C2 can't 
longer send mail.

Each mail sent from C2 reach the sendmail server and is returned
back to the sender with the error messages:

Assume the sender was trying to send a message to [EMAIL PROTECTED]

   ----- The following addresses had permanent fatal errors -----
<[EMAIL PROTECTED]>

   ----- Transcript of session follows -----
554 <[EMAIL PROTECTED]>... relay traffic prohibited
554 <[EMAIL PROTECTED]>... Service unavailable


Could be I need to declare the new subnetwork C2 to some
sendmail configuration file.

Any idea about ?

Thanks.

Bye
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