Topic: Port 25 closed on SME server - How to open ?

[Luc Halbach]

Dear all,

I have seen a lot of message regarding Port 25 blocked at server level and/or ISP level. I got my incoming OK after my first installation but today, after the second one, it is not working anymore.

I can do :

- internal mail send & receive
- external mail send

But no external mail receive is possible anymore.

Configuration : "Server & Gateway" with all mails as "Public"

Normal Telnet remote access blocked, only ssh OK and Webmail via https only.

So : How can I authorize Port 25 at SME server level for Incoming ?

Thanks a lot for your replies !

Luc

[Paul Nesbit]

> So : How can I authorize Port 25 at SME server level for
> Incoming ?

You shouldn't have to -- SMTP is allowed by default.

I suspect that either

  a)  Your e-mail retreival mode is not configured correctly
  b)  You have a DNS MX publication issue
  c)  Your ISP is blocking incoming SMTP (less likely than a or b)

What e-mail retrieval mode are you using?   What is the domain name for which you want to receive mail?

Paul

[Luc Halbach]

Hello,

Thanks a lot for your answer. I have installed a linux Suse 7.3 in order to test everything knowing that the port 25 is open as standard after installation and inetd activation.

Nevertheless, if I make a "telnet eme.on6jy.net 25", I get only a "trying xxx.xxx.xxx.xxx" and then nothing ! On other standard mail servers like e.g. relay.euregio.net, I get a connect on Port 25.

Therefore, I believe Port 25 at my provider is blocked.

What is your feeling ?

Cordially,

Luc

[Paul Nesbit]

> Thanks a lot for your answer. I have installed a linux Suse
> 7.3 in order to test everything knowing that the port 25 is
> open as standard after installation and inetd activation.
>
> Nevertheless, if I make a "telnet eme.on6jy.net 25", I get
> only a "trying xxx.xxx.xxx.xxx" and then nothing ! On other
> standard mail servers like e.g. relay.euregio.net, I get a
> connect on Port 25.
>
> Therefore, I believe Port 25 at my provider is blocked.
>
> What is your feeling ?

That port 25 is being blocked by your provided.  

--Paul