Hello!
I just migrated over from zimbra, and I have some newcomer issues, please point me to the right direction!
I am having SMTP errors with my new carbonio server. It sits behind a simple cdn. When I connect from any client from the local network of the server, it connects just fine, and I can send emails.
When I connect from outside my networks, I can IMAP just fine, but SMTP doesn't work. It is not just a simple port forward, the connections come routed from a single IP. The local network of my carbonio is like x.y.123.0/24, and when I connect from outside the networks, the connection comes from x.y.135.1. So it is not the same subnet.
The maillog says
connect from unknown[x.y.135.1]
warning: unknown[x.y.135.1]:SASL PLAIN authentication failed:authentication failure, sasl_username=x@y.z
Back in zimbra days we used to edit the mtamynetworks variable.
I had
postconf mynetworks
mynetworks = 127.0.0.0/8 [::1]/128 x.y.123.0/24
so I gave the command:
zmprov ms myservers.fully.cdn.name zimbraMtaMyNetworks '127.0.0.0/8 [::1]/128 x.y.123.0/24 x.y.135.0/24'
this made:
postconf mynetworks
mynetworks = 127.0.0.0/8 [::1]/128 x.y.123.0/24 x.y.135.0/24
But the authentication still doesn't work.
What should I edit or configure?
Thx
CadilLACi