2015-02-24 13:44 GMT+01:00 Marco Fioretti <marco.fiore...@gmail.com>:

> Hi Wietse!
>
> indeed, judging from this howto I found thanks to your pointer:
>
> http://kostja-osipov.livejournal.com/32518.html
>
> *sender_dependent_relayhost_maps *seems exactly what I need,
>
> > Does your system have "relay" permissions at the other domain's mai
> > server? You may have to configure SASL auth and
> > "smtp_sender_dependent_authentication = yes".
>
> that's likely the next step, now I know where to go, thanks.
>
> Marco
>

Hi,
after reading some more documntation and tutorials online, I have added the
following section to my main.cf, postmapped and restarted postfix:

smtp_sender_dependent_authentication = yes
smtp_sasl_auth_enable                = yes
smtp_sasl_password_maps              = hash:/etc/postfix/mymaps/sasl_passwd
smtp_tls_security_level              = may
smtp_tls_auth_only                   = yes
smtp_sasl_security_options           = noanonymous
smtp_sasl_type                       = cyrus
smtp_sasl_mechanism_filter           = plain, login

right now I am stuck at this point, when I send email as ma...@example.com.
Not sure how much it depends on me, and how much on some issues on the
other side. Thanks in advance for any further help,

Marco

postfix/smtp[11856]: certificate verification failed for
mx.example.com[xx.xx.xx.xx]:587:
self-signed certificate
postfix/smtp[11856]: warning: SASL authentication failure: No worthy mechs
found
postfix/smtp[11856]: C56A8A4E830: to=<marco.fiore...@gmail.com>, relay=
mx.example.com[xx.xx.xx.xx]:587, delay=0.31, delays=0.21/0/0.09/0,
dsn=4.7.0, status=deferred (SASL authentication failed; cannot authenticate
to server mx.example.com[xx.xx.xx.xx]: no mechanism available)

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