i'm trying to send a newsletter, this is my postfix mail.log postfix/smtp[31371]: AD9EA6FC9B1: to=<[email protected]>, relay=mail.libero.it[212.52.84.54]:25, conn_use=292, delay=27239, delays=24040/3198/0.01/0.98, dsn=2.0.0, status=sent (250 <492C05DA010431DA> Mail accepted) only a fews thousand mail were sent:then mail.log always says status=sent, Mail accepted but nothing being delivered. Even if i try to send myself a preview of that specifical mail its not delivered, but with a new one (different content), it works correctly. Any hint/ideas please? might it be a spam filter on mail dimension or what?