smtpd banner with wrong hostname
Posted: 10 Jan 2018 11:40
Hi,
i've add a domain on efa server, but when i try to send an email from another mail server on the same subnet, i've this error :
so i've seen this viewtopic.php?f=5&t=2829&p=11249&hilit= ... ted#p11249.
i've enabled full recursion dns and also put on sender server an entry on /etc/hosts but i've still same problem.
So i've try to contact mx.3bgroup.it by telnet on port 25 and i've this welcome message that is different to my efa server welcome message that is this
185.96.217.11 is my efa server and has a right PTR.
so "Client host rejected" i think that can be caused because of this mismatching of welcome message.
Why i don't have the welcome message of efa server?
Thanks
i've add a domain on efa server, but when i try to send an email from another mail server on the same subnet, i've this error :
Code: Select all
Jan 10 11:58:53 mail05-levita postfix/smtp[5569]: 30E6541E6C55: to=<mariachiara.gentile@3bgroup.it>, relay=mx.3bgroup.it[185.96.217.11]:25, delay=0.37, delays=0.01/0.01/0.22/0.13, dsn=4.7.1, status=deferred (host mx.3bgroup.it[185.96.217.11] said: 450 4.7.1 Client host rejected: cannot find your reverse hostname, [172.16.70.254] (in reply to RCPT TO command))
i've enabled full recursion dns and also put on sender server an entry on /etc/hosts but i've still same problem.
So i've try to contact mx.3bgroup.it by telnet on port 25 and i've this welcome message
Code: Select all
220 lev-mail-01.inlevita.it ESMTP Postfix
Code: Select all
220 proxy.levita.cloud ESMTP Postfix
185.96.217.11 is my efa server and has a right PTR.
so "Client host rejected" i think that can be caused because of this mismatching of welcome message.
Why i don't have the welcome message of efa server?
Thanks