NGINX SMTP Proxy

Server NGINX
1

Hi,

i already googled, but unfortanly i wasnt able to find a example for
nginx smtp proxy configuration. i wanted to setup as a simple smtp proxy
in front of a sendmail daemon.

thanks!

Juergen

2

Hi,

You can check this one
http://wiki.nginx.org/MailCoreModule

and probably (albeit, only through a translation :slight_smile:
http://citrin.ru/nginx:ngx_mail_core_module

We’ll shortly be adding an updated version on nginx documentation
too.

Also, do you need smtp proxy with or w/o authorization? What’s the
scenario of use?

3

Am 24.10.11 15:02, schrieb Andrew A.:

Also, do you need smtp proxy with or w/o authorization? What’s the scenario of
use?

nginx Info Page

Hi Andrew,

thanks! the 2nd link looks good.

we just need to protect the real smtp server from the bad bad internet
:slight_smile: no smtp auth at all.

cheers,

juergen

4

On Monday 24 of October 2011 14:02:15 Juergen G. wrote:

Hi,

i already googled, but unfortanly i wasnt able to find a example for
nginx smtp proxy configuration. i wanted to setup as a simple smtp proxy
in front of a sendmail daemon.

This one works for me:

mail {

auth_http localhost:9090/cgi-bin/auth;
server {
listen [a:b:c::d]:25;

# this is SMTP proxy!
protocol smtp;
smtp_capabilities "PIPELINING" "SIZE 10240000" "VRFY" "ETRN"

“ENHANCEDSTATUSCODES” “8BITMIME” “DSN”;

server_name maili2.prod.interseek.com;

proxy on;
proxy_timeout 30;
proxy_pass_error_message on;

# only if upstream supports XCLIENT
xclient on;

smtp_auth none;
so_keepalive on;

}
}

Brane

5

On Monday 24 of October 2011 16:16:19 Maxim D. wrote:

smtp_capabilities "PIPELINING" "SIZE 10240000" "VRFY" "ETRN"
"ENHANCEDSTATUSCODES" "8BITMIME" "DSN";

The “PIPELINING” here may be problematic, as out of the box nginx
doesn’t support SMTP pipelining.

Thanks alot for this clarification!

Brane

6

Hello!

On Mon, Oct 24, 2011 at 03:58:33PM +0200, Brane F. Gračnar wrote:

mail {

auth_http localhost:9090/cgi-bin/auth;
server {
listen [a:b:c::d]:25;

# this is SMTP proxy!
protocol smtp;
smtp_capabilities "PIPELINING" "SIZE 10240000" "VRFY" "ETRN"

“ENHANCEDSTATUSCODES” “8BITMIME” “DSN”;

The “PIPELINING” here may be problematic, as out of the box nginx
doesn’t support SMTP pipelining.

Maxim D.