> Independent of this I wouldn’t use [email protected] as a sender
> address to external recipients. This doesn’t look professional, makes
> replying to those emails impossible and in case hostname.example.org doesn’t
> have a public IP address it might also increase the risk that those messages
> are treated as spam or rejected, because they are coming from an unresolvable
> domain.
> Many MTAs provide ways to rewrite sender addresses, so you could rewrite both
> MAIL FROM and header From to [email protected] before delivering the
> messages. This will resolve all questions about subdomains once and for all
> and doesn’t even require any changes to the applications which create the
> messages.
Agreed. Example: Depending on your unix config, you can do like I did
and create /etc/mailutils.conf with this in it:
address {
email-domain xnnd.com;
};
So that any `echo "notification" | mail [email protected]` will
come from [email protected], not [email protected].
Cheers,
Al Iverson
--
Al Iverson / Deliverability blogging at https://www.spamresource.com
Subscribe to the weekly newsletter at https://ml.spamresource.com
DNS Tools: https://xnnd.com / (312) 725-0130 / Chicago (Central Time)
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