Jonathan Hermann:
> Hi folks,
>
> would like to ask for help with a "relay access denied" problem. We're
> talking about postfix 2.9.6 on an ubuntu server.
...
> smtpd_relay_restrictions=permit_mynetworks, permit_sasl_authenticated,
> reject_unauth_destination
As documented, "This feature is available in Postix 2.10 and later."
So you need to place that in smtpd_recipient_restrictions.
> So, currently I left it with recipient_restrictions.
> As far as I understand, this is the point where I need to tweak my
> config. But I just can't figure out what exactly I need to set.
Does Thunderbird client authenticate to Postfix with SASL? Should
it authenticate with SASL?
If Thunderbird cannot authenticate with SASL, then its IP address
needs to match "mynetworks" (look at output from the Postfix command
"postconf mynetworks", and adjust the main.cf mynetwork settings
if needed). This parameter is also described in the postconf.5.html
page.
Wietse
