Ale via Exim-users <exim-users@???> (Fr 16 Apr 2021 18:35:31 CEST):
> I've installed exim4 on a Debian machine. This machine is not connected
> directly to the Internet, but it goes through a vps server.
>
> Incoming connections come from an haproxy on that vps server. I've been able
> to route the incoming connections toward port 25. Now I need to enable the
> authentication through port 465, but if I enable it on haproxy, my exim
> server is not able to interpret the incoming message and I see something
> like: "SMTP syntax error in "\026\003\001\001...." on the exim log file.
- The "\026\…." *could* be the proxy v2 proxy header (not sure about the exact value)
- Do you send proxy headers? (send-proxy, or send-proxy-v2)
(proxy would start with "PROXY", v2 is binary only)
- Does Exim expect the proxy headers? (hosts_proxy = …)
I've a probably similar version running:
[haproxy]
listen mail
bind :993,:465
mode tcp
option tcplog
default-server send-proxy-v2 check verify none
option tcp-check
# check IMAPS
tcp-check connect port 993 ssl send-proxy
tcp-check expect rstring ^\*\sOK
tcp-check send x LOGOUT\r\n
# check SMTPS
tcp-check connect port 465 ssl send-proxy
tcp-check expect rstring ^220
tcp-check send QUIT\r\n
tcp-check expect rstring ^221
server a a.example.com
server b b.example.com
[exim]
...
hosts_proxy = x.x.x.x
daemon_smtp_ports = ... : 465
tls_on_connect_ports = 465
Best regards from Dresden/Germany
Viele Grüße aus Dresden
Heiko Schlittermann
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