On 16 Sep 2014, at 15:24 , AndreaML <andre...@z80.it> wrote: > Sep 16 06:42:00 server1 postfix/smtpd[4257]: NOQUEUE: reject: RCPT from > wr001msr.fastwebnet.it[85.18.95.77]: 450 4.7.1 <wr001msr.intranet.fw>: Helo > command rejected: Host not found; from=<VALID_ADDRESS> to=<VALID_ADDRESS> > proto=ESMTP helo=<wr001msr.intranet.fw> > > for a transaction of a prefectly valid test email i sent to myself.
Since your helo name does not exist, this is correct. I see very few rejections (relatively speaking) for non-existing domains or hosts. They are, definitionally, invalid emails. I haven’t looked closely, but I haven’t had anyone complain in quite a long time about missing mail. The there most recent are: 1E.bnsfd.com Nyt.pilisofe.com friendswhatitappears.in -- "An ounce of practice is worth more than tons of preaching." - Mohandas Gandhi
