On Thu, May 06, 2021 at 12:14:52PM +0200, Claus Assmann via Exim-users wrote: > On Thu, May 06, 2021, Cyborg via Exim-users wrote:
>
> > these are clients, that send "GET /..whatever HTTP/1.0"В as greeting.
>
> sendmail and postfix drop the connection at least on GET, POST,
> CONNECT, e.g.,
> 421 4.7.0 Rejecting open proxy
root@pve:~# telnet 127.0.0.1 25
Trying 127.0.0.1...
Connected to 127.0.0.1.
Escape character is '^]'.
220 pve.xxxxx.ru ESMTP Postfix (Debian/GNU)
GET / HTTP/1.0
221 2.7.0 Error: I can break rules, too. Goodbye.
Connection closed by foreign host.
Postfix does not violate SMTP protocol (with "421 4.7.0" response),
and its authors definitely have sense of humor. :)
--
Eugene Berdnikov
