Hello, These days, I'm using intensively NEOS with Knitro AMPL . I submit my model, data and parameters set through http://neos.mcs.anl.gov/neos/solvers/nco:KNITRO/AMPL.html For a few days, I have not been receiving any e-mail answer to each test I've done, although I can see everything is fine on the web page that appears once the job submitted : the process terminates normally. I have checked that my e-mail address is correctly filled. Is there any trouble with this e-mail procedure recently ? Thanks a lot for your feedback , and also for your great tool ! Regards David Gravot ROSTUDEL - Operations Research 57, rue d'Alleray 75015 Paris - France (33)1 45 31 19 06 / (33) 6 13 46 07 63 [email protected] www.rostudel.com