Pb with vacation

[Michel MENGIS]

Hello all,   I don't understand why I always get this msg each time a set a user as vacant:   The original message was received at Wed, 18 Oct 2000 09:03:15 +0200 from root@localhost    ----- The following addresses had permanent fatal errors ----- "|/usr/bin/vacation idaho"     (reason: service unavailable)     (expanded from: idaho)    ----- Transcript of session follows ----- smrsh: vacation not available for sendmail programs 554 5.0.0 "|/usr/bin/vacation idaho"... Service unavailable   any idea about this pb ?   Mengis michel