On Tue, May 31, 2011 at 10:17 AM, Marc Muehlfeld
<[log in to unmask]> wrote:
>
> I'm currently trying SL6 with postfix for local mail delivery (no "real"
> mail server).
>
> But I am wondering, why the sender is always "[log in to unmask]"?
> In /etc/postfix/main.cf is everything on it's default. "myhostname" is not
> set, what should postfix make getting the hostname via gethostname() as
> written in the comments.
>
> A hostname and search domain is configured for the system:
> # hostname -f
> vm01.test.local
>
> I know, I can set "myhostname", but why isn't postfix getting this by
> itself?

You shouldn't use "local" as a domain because it's reserved for avahi.

Check/set in main.cf: mydomain, myorigin, myhostname, mydestination