> mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128 192.168.0.0/24 Your java app will only allowed to send via this postfix instance from these IP ranges.
> When I configured postfix, in system mail name I specified > mail.mydomain.comand as smtp in my java app I use > mail.mydomain.com, so i think my app use postfix. No. That's not the case (at least not necessarily). If I were you I'd specify the IP of the Postfix server instead of a hostname. > Sep 11 11:40:01 Ubuntu-1004-lucid-64-minimal postfix/pickup[17353]: > E2A4816B2B75: uid=1000 from=<myuser> > Sep 11 11:40:01 Ubuntu-1004-lucid-64-minimal postfix/cleanup[17733]: > E2A4816B2B75: > message-id=<20110911094001.E2A4816B2B75@Ubuntu-1004-lucid-64-minimal> > Sep 11 11:40:01 Ubuntu-1004-lucid-64-minimal postfix/qmgr[7721]: > E2A4816B2B75: from=<myu...@mydomain.com>, size=776, nrcpt=1 (queue active) > Sep 11 11:40:02 Ubuntu-1004-lucid-64-minimal postfix/smtp[17735]: > E2A4816B2B75: to=<mym...@myotherdomain.com>, > relay=mx.myotherdomain.com[ip]:25, > delay=0.61, delays=0.02/0/0.4/0.18, dsn=2.0.0, status=sent (250 ok 1315734002 > qp 12668) > Sep 11 11:40:02 Ubuntu-1004-lucid-64-minimal postfix/qmgr[7721]: > E2A4816B2B75: removed That's submission via the sendmail command. Your Java app is speaking SMTP! Where are the logs for submissions from the java app? -- Ralf Hildebrandt Geschäftsbereich IT | Abteilung Netzwerk Charité - Universitätsmedizin Berlin Campus Benjamin Franklin Hindenburgdamm 30 | D-12203 Berlin Tel. +49 30 450 570 155 | Fax: +49 30 450 570 962 ralf.hildebra...@charite.de | http://www.charite.de