Not able to test via TELNET, new install

[cglmicro]

Hi guys.
I'm exploring PMG to replace MailCleaner, I'm trilled !!

My initial test was creating NDR, so I did further tests with telnet and here is my setup.

I'm filtering mail for many domains (incoming) that need to be delivered to different mail servers I run, so I enter nothing in PMG > CONFIGURE > MAIL PROXY > RELAYING > DEFAULT RELAY, and I left the port to 25.
I entered no domain in PMG > CONFIGURE > MAIL PROXY > RELAY DOMAINS.
I left port external to 25 and internal to 26.
I disabled greylisting for IPV4 in PMG > CONFIGURE > MAIL PROXY > OPTIONS and left everything to DEFAULT, except for the message size that I cranked up to 41943040 (40Mb).
In PMG > CONFIGURE > MAIL PROXY > TRANSPORT, I've added :
- relay domain: mycustomerdomain.com
- host: subdomain.mymailserver.com (it has a valid MX entry)
- Protocol: smtp
- port: 25
- use MX: yes
I didn't touch to the content of the other tabs.

I have TWO problem:
a) I was able to connect in "telnet proxmoxmg1.myserveraddress.com 25" the first time, but I receive a PROTOCOL error afet sending the command rcpt to, and now it doesn't answer from my home network.
b) I vpn to another network and was also able to "telnet myserveraddress.com 25", and I get the same error:

220-proxmoxmg1.localdomain proxmoxmg1.myserveraddress.com
helo cgl
250 proxmoxmg1.localdomain
mail from: info@randomdomain.com
250 2.1.0 Ok
rcpt to: david@mycustomerdomain.com
550 5.5.1 Protocol error
data
554 5.5.1 Error: no valid recipients


Perte de la connexion à l’hôte. (in english mean lost connexion to the host)

As usual, your help will be appreciated, thank you.

 

[Stoiko Ivanov]

Check the logs of the PMG while you try the telnet connection

also the helo command usually needs a fqdn (you used cgl without any domain)

The connection got rejected by postscreen - check out the documentation - that should explain why/what is going wrong:
http://www.postfix.org/POSTSCREEN_README.html

I hope this helps!

 

[cglmicro]

Thank you, will try that.

 

[cglmicro]

Hi Stoiko.

For your knowledge and for other who will hit this thread with the same problem I had, I needed also to add the customer domain in PMG > CONFIGURE > MAIL PROXY > RELAY DOMAINS, not just in PMG > CONFIGURE > MAIL PROXY > TRANSPORT.

I'm continuing my tests, and thanks.