Comments on: hMailServer SENT: 550 Delivery is not allowed to this address

By: Tim

Tim — Fri, 02 Oct 2009 17:56:51 +0000

yes, in my case, "My Computer" is the actual box that hMailServer is running on, and my IP range for that "interface" is 127.0.0.1 to 127.0.0.1.

the way I understand it, this will define the rules for connecting to hMailServer from the local machine, which is necessary in my case because I am running a web app that sends e-mail notifications. what I discovered today was that the web app could not send an e-mail using an address that was not hosted by the local hMailServer (giving me the same 550 error msg you blogged about) because I did not have "external to external" enabled.

I don't believe that I have created a security issue since I am not aware of any way that someone could maliciously connect to hMailServer from the local machine without having compromised the system to begin with (in which case, unauthorized e-mail transmissions would be the least of my worries). If I am wrong, naive, or just ill-informed, feel free to offer your input!

Thanks.

By: Tim

Tim — Fri, 02 Oct 2009 15:09:59 +0000

how does this allow "anyone" to send through hMail when the setting applies to "My computer"? I would think it means that any connection from localhost (127.0.0.1 or whatever IP range is defined) to hMailServer is allowed to send from an external address (not defined in hMail domains) to an external address.

if the same change were made under Settings-Advanced-IP Ranges-Internet, then THAT would open you up as a relay, no?

By: martinezgeovani

martinezgeovani — Mon, 13 Jul 2009 12:07:05 +0000

Yes, that is possible. Since I had set this up for testing purposes at the time I just wanted to get the mail out. When you do put it in a production environment then you should check off the proper \”Require Authentication for deliveries\” check box.

By: test

test — Mon, 13 Jul 2009 11:13:31 +0000

That setting will allow anyone to send email through your server!

By: martinezgeovani

martinezgeovani — Wed, 03 Jun 2009 13:12:08 +0000

So they say…..LOL.

By: Dave

Dave — Wed, 03 Jun 2009 10:39:43 +0000

HERO!!!

By: Yves H

Yves H — Fri, 20 Feb 2009 16:27:01 +0000

I had the same problem. Thank you for your help.

By: reg

reg — Wed, 11 Feb 2009 05:36:01 +0000

just what i was looking for. thanks so much!

By: Faisal

Faisal — Wed, 04 Feb 2009 22:07:04 +0000

Thanks
never mentioned in Hmailserver documentation !
I searched all the net for this fix

By: martinezgeovani

martinezgeovani — Sun, 04 Jan 2009 11:37:03 +0000

No problem, glad to be of help.