553 sorry, your envelope sender domain must exist (#5.7.1)

[Robert Canary]

Dennis,

Your defualt setting in the sendmail.cf file 
prevents sendmial from recieving mail accept on 
the local machine (127.0.0.1)

DAEMON OPTIONS('Port=smtp,Addr=127.0.0.1,Name=mta')dnl

This should be all on one line.  Your email may 
have truncated it.

The machine which you are sending mail must have a 
valid FQDN.  With junk mail running rampid these 
days, most properly adminstered MTAs will reject 
mail from a host which dosen't reverse resolve or 
dosen't have a proper host lookup. 
localhost.localdomain is a dummy hostname used for 
looping on a single machine (or sometimes on a 
closed network).


Dennis James wrote:
> Some time ago I was trying to send root mail to an isp smtp
> mail.m.mynet.net.au.
> I have succeeded in sending the email when doing a test, but I get the
> following error.
> 
> 553 sorry, your envelope sender domain must exist (#5.7.1)
> 
> The domain of the machine is localhost.localdomain.
> 
> I want only to be able to send email (to my email address and a work
> address) logs to myname at mynet.net.au.
> 
> I do not want to receive mail only send root mail and log files.
> 
> Is there a simple way of doing this.
> 
> I have had assistance previously which helped a lot.
> 
> Regards
> 
> 
> Dennis @ Scone
> 
>