Hi,


I have Postfix running on my LAN en I can send mail to the world.
But can't receive mail.

At the controlpanel of the company (not my ISP) who registerd my domain, I can setup MX and A records. What should my MX record be like?

My domain is: trango.nl. The name of my mailserver is: webserver (yeh I know...)

Should my mx record be: webserver.trango.nl?

Next: I can give the MX record some kind of ID. The default was number 5. What should I do with it? What is it's function?


Last thing: If I should change the MX record, should I change the main.cf ?

It is set to receive from trango.nl, 127.0.0.0/8


Cant figure it out.

Thanks Edwin.

MX records come in a form similar to this:
The hostname is the last field, and in your case will be webserver.trango.nl. the number is the MX priority, and the lower numbers hove higher priority. In other words, if you have 2 MXs, one with 20 and one with 10, servers trying to send you mail will use 10 first and 20 second.

Lastly, yes, you will need to tell postfix what domain it's should receive mail for.

HTH

How can I test the inbound mail?

If I send a mail (from outsite my domain) Nothing happends. No change in /var/log/messages

Ans should I fil-in the mx record "webserver" or webserver.trango.nl ?


Edwin.

Gotta get the zone right first:
the MX with priority 7 is the only correct one (as you can see). I'm not sure what you have to put in your file without seeing all of it. As for how to check it, send mail from outside and look (most likely) in /var/log/maillog

This is what my config looks like.

-------------------------------------------------------------------------------------------------------------------------------
Domainname: trango.nl
ID Record Type Info Target Change Remove
0 SOA 1086949294
6 @ MX (Mail eXchange) 5 webserver.trango.nl
7 www A (Address) 62.166.80.247
8 localhost A (Address) 127.0.0.1
9 mail A (Address) 62.166.80.247
10 @ MX (Mail eXchange) 6 trango.nl
11 @ MX (Mail eXchange) 7 webserver


Add Record
Record name:
Record type: A (Address) MX (Mail eXchange)CNAME (Canonical Name)AAAA (IPv6 Address)TXT (Text)
Info (MX only):
Target:


DNS/Domain Tools

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I removed record 6 and 10. What should I do with the other records?

fyi :

@ IN MX 10 name

when you create a record in a DNS zone, what is expected as _name_ is either a machine name (without any indication of domain) or a FQDN (fully qualified domain name) starting with az machine name and going all the way to the "." (dot) which is the root of the domain names system (above the TLD like .nl).

if you specify a name that does not end with a dot, the name server fills in with the zone name it is authority for, to get a FQDN : this explains why you get two ill-configured name and why the entry "webserver" is the only correct one.

Now to your problem : it seems the machine "webserver" is *not* defined; instead "mail" and "www" point to the ip address. So I think what you should have as mail exchanger line is either

@ MX 10 (or whatever) mail
or :
@ MX 10 www

Also, it is not very clean to have two "A" records on the same IP, usually one defines one A records and the other pointers are declared CNAME (aliases); this is controversial though.