Domain, DNS is it possible

[Kaiser_Sose]

Yes

How do I check

* Whether the SMTP server is even running

* Whether the mail is returned as undeliverable, and if so what is the error
message in the non-delivery report.

* Whether the mail stays queued up on the sending relay, and if so what is
the transient error message

* The error messages that are logged by syslog

[Killer_Penguin]

Well, the logs are in /var/log/maillog for mail, and /var/log/messages for system messages.

To see if the SMTP server is up, you can telnet <yourip> 25

so if your IP is 192.168.0.2, telnet 192.168.0.2 25

if it accepts your connection, then the SMTP server is up.

[Rastar]

Also, you can't have a full domain pointing without a static IP address.

All it involves is a static IP address, as you can use www.mydns.com for a free DNS management system. Just tell your registrar that mydns.com is the SOA (the master DNS) server for your domain, then you can set up all your domains and subdomains off of that at mydns.com. I have 3 or 4 domains that are DNS'd by them, such as j2solutions.net and foolclan.com.

Without a static IP address, this is not possible.

You can have a registered domain name without a static IP I did it for over a year using my registered domain name btshadows.net and having as you suggest a domain helper like mydns.com (I used dns2go) they then through a script that runs constantly link your domain name to your dynamic IP. It worked well as a matter of fact I still use them even though I have a static IP now.
Rastar

[Compunuts]

You can have a registered domain name without a static IP I did it for over a year using my registered domain name btshadows.net and having as you suggest a domain helper like mydns.com (I used dns2go) they then through a script that runs constantly link your domain name to your dynamic IP. *It worked well as a matter of fact I still use them even though I have a static IP now.
Rastar

We are not talking about only Domain here. We are talking about mail server with MX record pointing to the real domain. MX server required Static IP.

[Compunuts]

# You must specify a non-privileged account to receive postmaster mail.
# The postmaster CANNOT be root. *Until you specify a valid postmaster
# alias below, all postmaster mail will be bitbucketed.

postmaster: mb18@mydomain.com

I then ran the commands

[root@pac10fans aliases]# /usr/lib/courier/sbin/makealiases
[root@pac10fans aliases]# echo "To: postmaster" |
/usr/lib/courier/bin/sendmail

I logged into mb18's webmail account and there is nothing in the Inbox
the return receipt one dose not work either

I checked my aliases file and it's only

postmaster: compunuts

and that do not have FQDN part of it... So I"m not sure that's the factor.