evil sendmail
 

Simple question I think:

When things like cron send emails, they use the root's from-email address. That's the point: it looks like "root@neptune.domain.com". You can imagine I won't receive email when anyone replies to that.
That's why I want to know if it's possible (and how of course) to set the from-address of the root account to "mark@domain.com".

Thanks alot.
Please don't tell me to configure my client, I don't want to!

It might be easier to configure sendmail to forward all emails SENT to root to mark instead.

I set it to forward all mails to root to mark.spam@givemehelp.co.uk.

But, it's about the fromaddress!

But if someone replies to the root address, then those replies will be forwarded to mark.

Yes, but the root address is "root@neptune.domain.com" which doesn't excist. domain.com does, neptune.domain.com doesnt.