(argh! sorry, i should take a closer look to the subjects ;)

why do you use sendmail? (NetBSD's postfix 'hides' behind a sendmail  
masquerade some way...)

> hi,
>
> as you're using NetBSDs default mail server (postfix), you'll take a  
> look here:
>
> http://postfix.state-of-mind.de/patrick.koetter/smtpauth/ 
> smtp_auth_mailservers.html
>
> that describes how to authenticate against an ISPs smtp server in  
> order to be allowed to relay mail.
>
> are you sure that your friend's MUA authenticates against the ISPs  
> smtp? most do it another way, and use smtp-after-pop or similar  
> techniques.
>
> regards,
>
> timo
>