Mail server add-on for ReadyNAS?

claykin wrote:
An SMTP server port open to the Internet to "collect your mail" is more risky than an email client. One is behind a NAT or SPI firewall, the other is NOT. An SMTP server leaves a known and common port (25) open to the Internet, a mail client does NOT.

Now, if you could explain to me why I would need an open SMTP port to the internet to collect my mail so it can be processed by my local mail server?

-Stefan

WhoCares? wrote:

claykin wrote: An SMTP server port open to the Internet to "collect your mail" is more risky than an email client. One is behind a NAT or SPI firewall, the other is NOT. An SMTP server leaves a known and common port (25) open to the Internet, a mail client does NOT. Now, if you could explain to me why I would need an open SMTP port to the internet to collect my mail so it can be processed by my local mail server? -Stefan

http://en.wikipedia.org/wiki/Mx_records

If you plan to do it the way Milhouse is, then you don't need to open port 25. In that case you are not truly hosting your own mail, someone else is.

claykin wrote:
If you plan to do it the way Milhouse is, then you don't need to open port 25.

That's exactly what I was saying right from the beginning.

claykin wrote:
In that case you are not truly hosting your own mail, someone else is.

It may be due to my limited knowledge of the English language, but: As far as I could read in this thread, nobody wanted to host his own mail server with fully qualified MX record on the ReadyNAS in the first place. It was all about added value ... errr ... additional features to complement already existing accounts with external service providers. And in that kind of usage szenario, I don't think a mail server on the ReadyNAS would be more of a security threat than any normal email client.

Of course you're right that once you start connecting such a setup to the internet directly a lot of bad things may happen. But I believe the majority of ReadyNAS users don't even have an own domain to begin with.

Regards,
-Stefan

WhoCares? wrote:

claykin wrote: If you plan to do it the way Milhouse is, then you don't need to open port 25. That's exactly what I was saying right from the beginning. claykin wrote: In that case you are not truly hosting your own mail, someone else is. It may be due to my limited knowledge of the English language, but: As far as I could read in this thread, nobody wanted to host his own mail server with fully qualified MX record on the ReadyNAS in the first place. It was all about added value ... errr ... additional features to complement already existing accounts with external service providers. And in that kind of usage szenario, I don't think a mail server on the ReadyNAS would be more of a security threat than any normal email client. Of course you're right that once you start connecting such a setup to the internet directly a lot of bad things may happen. But I believe the majority of ReadyNAS users don't even have an own domain to begin with. Regards, -Stefan

Sorry if I didn't understand your desired setup from the beginning.

I think some will want to do it the way you and Milhouse do, but others will want to host their own mail with a FQDN.

claykin wrote:
Sorry if I didn't understand your desired setup from the beginning.

No problem. I think I misunderstood you as well. I thought you were against providing a mail server on the ReadyNAS just because of the possibility that someone could connect it to the internet. That's why I said it's not the technology causing the risks but the users.

claykin wrote:
but others will want to host their own mail with a FQDN.

Sure. But I still believe that those who intend to do that either know what they are doing or will learn very promptly that although email may seem simple when used with a client it is quite a different beast once you try to tame it yourself ;)

Regards,
Stefan

What Config must I Change to make the exim Mail-Server be able to relay Mail ? I have some tools, which will send Mail-Notifications through a smtp relay Server.

thanks.

michaelxy wrote:
What Config must I Change to make the exim Mail-Server be able to relay Mail ? I have some tools, which will send Mail-Notifications through a smtp relay Server.

Instead of having your tools send their mail through Exim on the ReadyNAS it would be much easier and more failsafe to provide those tools with the credentials you use to connect to you email provider and have them send their stuff that way.

-Stefan

sorry - but this is NOT the answer of my question.

Ah, sorry, I forgot.
You have to change the configuration in /etc/exim/exim.conf.

-Stefan

I think I have to reboot the device :neener: