Re: Does someone knows what is this about?

[OK 2 NET - Andr� Paulsberg]

>> This seems like a weak excuse, all your interfaces should have
>> matching RDNS to their main A records and it's sufficient to set this up once!
>
> Who shall fill in control/locals, should the reverse (outside my control) change?

You, because you choose the mailservers hostname/domain.

Just because your RDNS is handled by your ISP,
doesn't excuse not updateing the RDNS.
In fact this is even more important than before since
the IP you are using is NOT linked to you in any other way.


>> If your mailservers hostname is mail.antek.cz then mail.antek.cz is
>> also an domain, then [EMAIL PROTECTED] is an required RFC 822
>> postmaster address.
>
> Yes; but the machine has also an interface antek.vol.cz (outside my control).
> This interface is never shown in DNS as MX,
> but still it's an _outgoing_ interface for world-bound mail.
> Should I have this interface in control/locals?
> Not at all - anyone using it is just doing that by mistake.

Sorry, again!

If this server is answering port 25 with an SMTP server/deamon,
this is a mailserver and MUST have a valid postmaster address (RFC822).

antek.vol.cz is absolutly in DNS and RDNS:
mail1:~ # host -t a antek.vol.cz
antek.vol.cz has address 195.250.137.143
mail1:~ # host -t ptr 195.250.137.143
143.137.250.195.IN-ADDR.ARPA domain name pointer antek.vol.cz

As far as i'm concern any mail problems with antek.vol.cz
should be sent to [EMAIL PROTECTED] .


>> ORBS only have the IP address of the mailserver,
>> as per RFC822 postmaster@RDNS/IP should be enough.
>
> Perhaps this shows the beef some people have with ORBS.
> "Four legs goos, two legs bad."

You do not understand, ANYBODY recieving mail from your server
only have the IP address as the link to any responsible party.


> It would be trivial for you to change the way you notify the postmaster.
> It would actually _help_ the administrators of the misconfigured sites.

NO, it would not -> WHY:

If 1'000'000'000 mail admins have different WAYS to be contacted,
ANYBODY trying to get in contact with another mail admin would
use an avarage 500'000'000 times to find the right way.


> But no, due to some religious belief you just list them and not tell them.

This isn't a religious belief we are talking about,
we are talking about a common way for all mail-servers
to accept mail for a common postmaster account using SMTP.
The way you are descibing requires ANYBODY to telnet to port 25
and sending a "rcpt to: <postmaster>", this is NOT the way
RFC822 ment ANYBODY should send to postmaster accounts on each mailserver.

OBVIOUSLY, due to RFC822 your mailserver MUST accept mail to postmaster,
even if it's only an outgoing relay server for your clients.
Since this server doesn't have any MX records and no additional RCPTHOSTS
and is located on another than your own network with a hostname other
than your own it's quite stupid of you to expect ANYBODY to be able to
contact this mailservers admin if they have questions/complains.

I emphasize that I'm now talking postmaster in general,
and that ANYBODY for any reason wants to write to mailservers admin.


Regards Andr� Paulsberg