[horde] IMP : Mail are not send to other domains

[Gerard Breiner]

Hello,

I meet some problems with IMP after having changed of machine.
Sending mail  by using IMP  works fine  into my domain but not out this 
one. 
What can prevent to send mail out of my domain ? 

Any help would be appreciated :-[

Gerard

-- 
Université Paris-Sud 11
Institut D'Astrophysique Spatiale
Gérard Breiner
Rue Georges Clémenceau
fr-91405 Orsay-ville