On Tue, Apr 17, 2018 at 06:38:00AM -0600, @lbutlr wrote: > I finally managed to isolate this. I have no been receiving mails > from some mail servers and there's very little being logged. I > obviously set some configuration that mucked things up. Here is > the entire mail.log from the first minute after midnight: > > Apr 17 00:00:09 mail postfix/postscreen[67061]: CONNECT from > [94.237.32.243]:46598 to [65.121.55.42]:25 > Apr 17 00:00:09 mail postfix/dnsblog[74920]: addr 94.237.32.243 listed by > domain hostkarma.junkemailfilter.com as 127.0.0.1 > Apr 17 00:00:09 mail postfix/dnsblog[74920]: addr 94.237.32.243 listed by > domain hostkarma.junkemailfilter.com as 127.0.1.1 > Apr 17 00:00:09 mail postfix/dnsblog[74865]: addr 94.237.32.243 listed by > domain score.senderscore.com as 127.0.4.97 > Apr 17 00:00:09 mail postfix/dnsblog[74950]: addr 94.237.32.243 listed by > domain list.dnswl.org as 127.0.9.2 > Apr 17 00:00:10 mail postfix/postscreen[67061]: PASS OLD [94.237.32.243]:46598 > Apr 17 00:00:11 mail postfix/smtpd[84666]: connect from > wursti.dovecot.fi[94.237.32.243]
It gets through postscreen, to smtpd ... > Apr 17 00:00:39 mail postfix/smtpd[84666]: disconnect from > wursti.dovecot.fi[94.237.32.243] ehlo=1 mail=0/1 rcpt=0/1 data=0/1 > rset=0/1 quit=1 commands=2/6 > > As you can see, 94.237.32.243 connected and then after 30 seconds > disconnected. It says it sent an ehlo, but it is not logged. [it looks logged, to me] Unfortunately the SMTP protocol provides no means for a client to tell a server why it's unable to complete a transaction. Noting that this is probably from the Dovecot users' mailing list, I will put forth a WAG: perhaps you are requiring TLS? That host is among a small number of hosts in my logs which hit a "warn_if_reject reject_plaintext_session" restriction. If you require TLS you can't receive mail from hosts which do not STARTTLS. If you can ask Timo or dovecot.fi people directly, they should be able to help you. > This is one of the lists effected, so please include a Cc to me. Sorry, can't; I am a SPF violator. One Of These Days, I might fix that. -- http://rob0.nodns4.us/ Offlist GMX mail is seen only if "/dev/rob0" is in the Subject:
