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Old 29th February 2012, 16:57
MacGoose MacGoose is offline
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Question Must "System mail name" be the same as the server name?

I'm always using "The Perfect Server" for my Ubuntu server setup.

And until now I've always set "System mail name" to the same as the server name - just as in "The Perfect Server" tutorials. But must it be like this?

Can I, for example, use "mail.example.com" on a server called "server.example.com" as long as at least the MX is also set correctly?
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Old 29th February 2012, 17:10
till till is offline
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The mailname can be different from the system hostname. But you might get problems with other mailservers if they are different because the reverse dns record of the server IP can pointto one domain name only and this is in most cases the hostname.
Till Brehm
Get ISPConfig support and the ISPConfig 3 manual from ispconfig.org.
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Old 29th February 2012, 17:47
MacGoose MacGoose is offline
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Thanx till! I understand. But are reverse lookups common or even used at all for mailservers? Or servers in general? I tried my server's IP and it was unresolvable. And I have not had any problems with e-mails at all.

I'm guessing that the server is unresolvable because I haven't configured it directly to an IP address as my VPS provider does that just fine on their system. So the server itself only knows localhost and "thinks" its on a DHCP system.

What actually happens there I don't know to much about really - just as long as it works.

Anyhow, thanx again. I will just set up a server and try it out.
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