Mihalis I. Tsoukalos wrote: > If I change the /etc/mailname file to something different than > "localhost", then all the mail for root goes to root@host.name /etc/mailname is the local host's fully qualified domain name. It should match your /etc/hostname file. Although /etc/hostname may be a short hostname and is not required to be the fully qualified hostname. It is an admin preference. I prefer it fully qualifed. > If I have the "localhost" entry, then some mailservers reject my mail as > my servername is not a valid one. Correct. The address for this list <debian-user@lists.debian.org> is valid. But <debian-user@localhost> is not. This is the same thing. It needs to be a valid hostname that *other* systems know about. > What can I do to solve it? hostname --fqdn > /etc/mailname /etc/init.d/postfix restart Notes: /etc/mailname is a Debian specific modification. I will guess that the intention is to a) support systems that use the short hostname instead of the fully qualified domain name, b) to take the hostname out of random MTA specific files (e.g. /etc/postfix/main.cf for postfix) and keep them in a generic location. By doing so then the MTA config files are allowed to be more generic. Postfix (and I assume most mailers) don't need this setting if the hostname is already fully qualified since it gets the mailname from the hostname. For me /etc/mailname is an issue since I have a heterogeneous environment. Do I support /etc/mailname since it is a Debian thing? Or do I junk it since since it is a Debian only thing? I ended up writing my scripts to be adaptive and use it on Debian but do not use it on non-Debian. Remember that the /etc/mailname is a patch to the Debian sources and not found on other systems. Bob
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