On 21/09/2018 22.48, Patrick Shanahan wrote:
* Carlos E. R. <robin.listas@gmx.es> [09-21-18 22:30]: [...]
No, not quite. :-)
opensuse.org, for instance, will only accept email which destination is mail list, employers, or whoever holds an @opensuse.org address. Or maybe others for which this is the handling server. Without authentication.
But it will refuse to accept an email which destination is carlos@tlefonica.net, because that would be acting as a relay for improper usage.
gmx.es will accept without authentication emails for *@gmx.es, but if someone attempts to send to carlos@telefonica.net will ask for authentication; if this fails, the post will be denied.
It is quite simple, actually. The port used has no relevance, the behaviour is basically the same.
what is the point of extending this conversation? what result or solution are you trying to reach aside from argument?
The purpose is to get understood... It seems that I speak greek or chineese. -- Cheers / Saludos, Carlos E. R. (from openSUSE 15.0 (Legolas))